Thursday, 11 January 2018

Qualcomm Claims Its New Chip Will Triple Battery Life on Wireless Headphones

There are currently two major annoyances with wireless headphones: the Bluetooth can cut out in areas with a lot of signal noise, and battery life is mostly terrible. Qualcomm thinks it’s packed a better solution to both of those issues into a new chip.
“It’s a big step forward in the hearable category,” Anthony Murray, Senior Vice President and General Manager of Qualcomm’s Voice & Music business unit, told Gizmodo.
According to Murray, the QCC5100 Low Power Bluetooth SoC reduces power consumption by 65 percent. This in turn gives headphones nearly three times the playback time compared to headphones with previous SoCs.
Murray also said the Qcc5100 has significantly better transmit power, which should reduce the number of times headphones cut out when you’re riding a packed subway or moving through a hellishly crowded airport. The chip supports Bluetooth 5, which was only announced in 2016, and just began to appear in devices, like the Samsung Galaxy S8 and Apple iPhone X, last year.
Besides these improvements, the minuscule chip has double the processing capability of Qualcomm’s former solution, which was found in popular headphones like the Jabra Sport Elite and Bose Free Sport.
This means that the chip can provide much more robust active noise cancelling and hearing assistance. For example, it would allow for some conditional sound changes like making sound softer when your headphones detect that an announcement is being made on a train. “We see this as becoming a general requirement,” Murray said. And if you look at the wide range of earbuds in the marketplace right now, and their multitude of auditory bionic features, you might be compelled to agree.

Currently there are no earbud makers who have declared they’re using the new QCC5100, but Qualcomm says it is working with a number of major manufacturers, and as its previous SoC was featured in the best earbuds of 2017, there’s a good reason to get excited for what the future of bionic buds holds.

Re Fuse Power Supply

When your power supply dies, it can mean two things – either a fuse has been blown, or it has a loose wire. Power supply fuses are among the few components that can be serviced. Most fuses are soldered directly to the circuit board. Replacing a fuse would require you to remove the circuit board, unsoldering the old fuse, and soldering a new fuse in its place.
1. Unplug the Power Supply. Switch off the socket that is connected to the power supply. Unplug the line voltage power cord from the socket.
2. Open and Unplug the CPU: Use a torx screwdriver to remove the torx screws of the CPU. Remove the CPU casing. Unplug the low voltage cables that are connected to the drives and motherboard. Remove any CPU cards that may obstruct your view of the power supply.
3. Unscrew the Power Supply. Generally, the power supply is held in place by 4 torx screws. Unscrew them using the torx screwdriver and remove the power supply from the CPU.
4. Check the Warranty. The warranty is a stamped sticker that is on one of the edges of the power supply. It consists of the warranty date, a bar code and a ‘pass’ stamp. If the warranty has expired, cut across the sticker safety seal and open the power supply case.
5. Examine the Fuse. The fuse is usually located on one corner of the power supply. Use an ohm meter to check the fuse. If the ohm meter is showing readings below 0.1 ohms, or if there is resistance on the meter, then you will know that the fuse has blown.
6. Charge the Soldering Iron. Plug in the soldering iron and heat it to about 700 degrees. Touch the tip of the soldering iron to the tin wires on either side of the fuse. As the solder softens, gently push the fuse away from the circuit board. Once the soldering is complete, you can remove the fuse.
7. Solder New Pins to the New Fuse. Buff each end of the fuse with emery paper to dull the plating. Take the six inch long stripped 24 gauge wire with flux and tin it with resin solder. Tin the ends of the fuse, after which you can solder the wires to the ends.
8. Trim the Wires and Circuit Board Pins. Use the wire cutter to remove any excess pins from the board. Also, cut the gauge wire with only an inch of space from the fuse joint.
9. Solder the New Fuse. Place the new fuse onto the circuit board and solder it into place with the soldering iron. Once this has been completed, use the ohmmeter to test the fuse.

10. Reinstall the CPU. Once the fuse is showing good readings on the ohmmeter, close the power supply case. Keep it back into the CPU and screw it in. Replace the CPU casing and plug it in for use.

Wednesday, 10 January 2018

Introduction to Computer Network Adapters

A network adapter allows an electronic device to interface with a local computer network.
Types of Network Adapters
A network adapter is a unit of computer hardware. Several types of hardware adapters exist:
Ÿ   Many new computers contain integrated (built in) wireless network adapter chips
Ÿ   A USB network adapter plugs into a standard USB port to enable computer network connections (typically Wi-Fi or Ethernet)
Ÿ   A wireless game adapter (sometimes called a "media adapter") connects to an Xbox or Playstation game console or other home entertainment product, providing a bridge to Wi-Fi wireless capability.
Ÿ   On older PCs,a PCI adapter (often called a NIC) was a type of add-in card installed inside a desktop personal computer. A variant PCI adapter called "PC Card" (also known as PCMCIA cards) inserted into the side of a notebook computer to provide similar capability.
Adapters are a required component to include when building a network. Every common adapter supports either Wi-Fi (wireless) or Ethernet (wired) standards. Special-purpose adapters that support very specialized network protocols also exist, but these are not found in homes or most business networks.
Determine Whether a Network Adapter Is Present
Newer computers often include a network adapter when sold. Determine whether a computer already possesses a network adapter as follows:
Ÿ   In desktop computers. look for an RJ-45 jack on the back of the computer. The RJ-45 jack appears similar to a phone line jack but is slightly larger.
Ÿ   In notebook computers, look for a thin, removable metal device roughly the size of credit card, but thicker.
Ÿ   For notebook computers running Windows that may contain integrated adapter chips, open the Windows Device Manager. Device Manager can be accessed from the Hardware tab of the System Properties section of Windows Control Panel
Ÿ   In any type of computing device, look for a small external device with LED lights connected to a USB port
Purchasing a Network Adapter
A network adapter can be purchased separately from most manufacturers that supply routers and other forms of networking equipment. When purchasing a network adapter, some prefer to choose the brand of adapter that matches their router. To accommodate this, manufacturers sometimes sell one or two network adapters together with a router in a bundle called a home network kit. Technically, however, network adapters all offer very similar functionality according to the Ethernet or Wi-Fi standard they support.
Installing a Network Adapter
Installing any network adapter hardware involves two steps:
1.     Connecting the adapter hardware to the computer
2.     Installing any required software associated with the adapter
For PCI adapters, first power down the computer and unplug its power cord before proceeding with the installation. A PCI adapter is a card that fits into a long, narrow slot inside the computer. The computer's case must be opened and the card firmly inserted into this slot.
Other types of network adapter devices can be attached while a computer is running normally.
Modern computer operating systems automatically detect newly connected hardware and complete the basic software installation required.
Some network adapters, however, additionally require custom software installation. Such an adapter will often be accompanied by a CD-ROM containing the installation media. Alternatively, the necessary software can be downloaded for free from the manufacturer's Web site.
Software installed with a network adapter includes a device driver that allows the operating system to communicate with the hardware. In addition, a software management utility may also be supplied that provides a user interface for advanced configuration and troubleshooting of the hardware.
These utilities are most commonly associated with Wi-Fi wireless network adapters.
Network adapters can normally be disabled through their software. Disabling an adapter provides a convenient alternative to installing and uninstalling it. Wireless network adapters are best disabled when not in use, for security reasons.
Virtual Network Adapters
Certain types of network adapters have no hardware component but rather consist of software only. These are often called virtual adapters in contrast to a physical adapter. Virtual adapters are commonly found in virtual private networks (VPNs). A virtual adapter may also be used with research computers or IT servers that run virtual machine technology.
Summary
The network adapter is an essential component in both wired and wireless computer networking. Adapters interface a computing device (including computers, print servers, and game consoles) to the communication network. Most network adapters are small pieces of physical hardware, although software-only virtual adapters also exist. Sometimes a network adapter must be purchased separately, but often the adapter is built into a computing device, especially newer devices. Installing a network adapter is not difficult and often is a simple "plug and play" feature of the computer operating system.

PC Power Supply Buyer's Guide

How to Make Sure You Get the Right Type of PSU to Match Your Needs
Power supply units (PSUs) are often overlooked when building a desktop computer system. A poor quality power supply can greatly reduce the life span of a good system or cause instability. A high quality one can also help reduce the noise or heat generated within a computer system. Whether you are buying one for a new computer or replacing a old unit, here are some tips for purchasing a desktop PC power supply.
Avoid Power Supplies Under $30
Most power supplies that are priced below $30 generally do not meet the power requirements of the latest processors. To make matters worse, the components used in them are of inferior quality and more likely to fail over time. While they may power the computer system, inconsistencies in the power to the components will tend to cause instability and damage to the computer over time. Because of this, I generally do not recommend they extremely low cost power supplies.
ATX12V Compliant
Developments in processors, the PCI Express bus and graphics cards have all increased the amount of power required to operate them. To help provide this extra power, the ATX12V standard was developed. The problem is that it has been revised over time with various different power supply connectors to meet the necessary specifications. Make sure that it comes with the proper main power leads that you need for your motherboard.
One way you can tell whether a power supplies is compliant with your computer components is to check the type of power connectors are supplied to the motherboard. If it is missing one of the connectors your motherboard needs, it probably does not support the proper ATX12V standard.
Knowing the Wattage Ratings
Wattage ratings on power supplies can be deceptive as this is the total combined wattage of all the voltage lines and generally under peak rather than sustained loads. With the increased demands by components, the total required output particularly for the +12V line has become increasingly important especially for those that are using dedicated graphics cards. Ideally a power supply should have at least 18A on the +12V line(s). The actual load you need will vary depending upon your components. If you are not planning on using a graphics card, a 300 Watt power supply is probably sufficient but if you are running one or more graphics cards, be sure to check out the manufacturer's recommended PSU wattage.
Having the Right Type and Number of Connectors
There are a variety of different power connectors that come off a power supply. Some of the different connectors include 20/24-pin power, 4-pin ATX12V, 4-pin Molex, floppy, SATA, 6-pin PCI-Express graphics and 8-pin PCI-Express graphics. Take stock of what power connectors your PC components require to ensure you get a power supply with the appropriate connectors. Even if it might lack some connectors off the power supply, check what cable adapters the power supply may include to mitigate the problem.
One other thing to consider is modular cables. Higher wattage power supplies tend to have a large number of cables running off of them. If you have limited space within your case, this may cause issues as you have to bundle the cables up. A modular power supply offers power cables that can be attached only if you need them. This helps reduce cable clutter which can restrict airflow and make it difficult to work within a computer.
Physical Size
Most people don't give much consideration to the actual size of the power supply. After all, are they not all a standard size? While they are general guidelines for the size of the units, they actually can vary a good deal and make it difficult to git within your computer case.
For instance, higher wattage power supplies tend to be a bit longer to hold the additional power components they need. This may cause issues with cable routing or even fitting in other internal components. Finally, if you are using a small form factor case, it may require a specialized power supply such as SFX rather than ATX.
Low or No Noise
Power supplies generate a lot of noise from fans used to keep them from overheating. If you don't want a lot of noise, there are a number of options available. The best choice is for a unit that either uses larger fans that move more air through the unit at slower speeds or to get one with temperature controlled fans. Another option is fanless or silent power supplies that generate no noise but these do have their own drawbacks.
Power Efficiency
Power supplies convert voltages from wall outlets to lower levels used by the PC. During this conversion, some power is lost as heat. The efficiency level of the PC determines how much extra power must be put into the power supply to run the PC. By getting a more efficient power supply, you end up saving money through the use of less overall electricity. Look for a unit that has the 80Plus logo showing that it has passed certification. Just be warned that some of the highest efficiency power supplies may cost so much more that the power savings does not match their increased cost.

Tuesday, 9 January 2018

Cold Weather Can Mess With Your Phone. Here's How to Protect It

Apple says its iPhones are made to operate in temperatures above 32 degrees. Much of the country won’t even creep above that mark until the second week of January – and tens of millions of Americans are enduring lows in the negative double digits.
In conditions like these, many smartphones will be start experiencing problems like shutting off, shortened battery life, display problems or even the glass shattering. Most smartphone batteries are lithium-ion, which can stop discharging electricity in extremely cold temperatures, Roger Gurney, owner of Arctic Tech Solutions, explained to USA Today. Here are a few tricks you can use to keep your phone working in Arctic temperatures.
Keep it in your your pocket
Even something as simple as keeping your phone in your pocket or bag can help shield it from icy temperatures. Keeping your phone in your pocket will also allow it to benefit from your body heat to help keep it close to optimal temperatures.
Smartphones are most vulnerable when left out in the cold or without heat for extended periods of time – so avoid leaving them in parked cars.
Use a special case
If you absolutely need to keep your phone out in the cold weather, there are a few cases that are specially designed to keep phones warm. Makers include ClimateCase, Burton Antifreeze and Salt Cases.
ClimateCase uses insulated neoprene to keep the cold out. It also comes with an extra pocket for storage and it’s machine washable. Burton’s case also uses insulation to keep phones warm and offers an extra pocket for cards or cash you may want on hand. Salt Cases are insulated against the cold, but use more traditional phone case style that can be kept on during use. They also have laptop and tablet designs.
Wait to charge your phone
While most performance issues related to cold weather are temporary, Apple warns that charging iOS devices in extreme temperatures can damage the devices further.
Turn your phone off
iPhones, iPads, iPods and Apple Watches all have a working temperature range of about 32 to 95 degrees. However, when not in use the safe range increases to -4 to 113 degrees.

Wear Headphones

No matter what kind of headphones you’re using, they may take a bit of adjustment to get the perfect fit. On-ear and over-ear headphones are the most traditional, with the ear cups fitting snugly over each ear. In-ear headphones and earbuds need to be placed inside the ear hole.
1.Wearing On-Ear and Over-Ear Headphones
Plug the headphones into your audio device. Your device, whether it’s laptop or smartphone, has an audio input that your headphone jack should fit into perfectly. For a laptop or larger device, you may need to check around the perimeter and on the back to find the right audio input. Check for “L” and “R” labels near the ear cups. Many headphones specify which ear cup goes over the left ear and which one goes over the right. Check around your ear cups for the “L” and “R” markings, which mean "Left" and "Right."Slip the headphones over your head. The band that connects the cups should fit snugly over the top of your head. Most headphone bands are adjustable, so if the fit isn’t comfortable, try adjusting it. Tug at the band to see if it gets smaller or larger, then adjust as needed. Place the ear cups directly over your ears. Adjust them a bit so that the cups cover your ears comfortably. Over-ear headphones, which have large cushions as ear cups, create a slight seal effect over each ear, which cancels out noise during use. On-ear headphones are smaller, and the cups are usually around the size of your ear. They will fit directly over the ear hole.
2.Wearing Ear Buds
Check for “L” and “R” labels on your ear buds. Some ear bud brands may specify which speaker goes into which ear. “L” means left ear, and “R” means right. The most common kind of ear buds, such as those made by Apple that come with iPods, usually do not have this. Hook the first bud into your left ear hole. Situate the bud in your ear by hooking it into the ear hole. The plastic stem connecting the bud to the wire should line up in the same direction as your jawline. Do not push it into your ear canal. It should hang in the crevice in the outer part of your ear-fold. Repeat with the right ear hole and adjust as necessary. Repeat the same action for your right ear by gently situating the rounded bud into the outer part of your ear hole. Adjust carefully and avoid pushing the ear bud into your ear canal. Look into accessories if you're having trouble with the fit. Ear buds are notorious for falling out of the ears, especially during exercise. If this is happening to you, search online for accessories that you can pair with your buds to keep them in place. There is a wide range of different approaches to this, so do a little research and choose the accessory that best addresses your issue.
Alternative Power Supply to replace the HP 633196-001
replacement CLEVO W950BAT-4 laptop battery
Samsung Multi-Room Speaker Adapter
Samsung XE500T1C DC Charger Auto Power Supply
New ACER AC13C34 laptop replacement battery 11.4V 2640mAh

Monday, 8 January 2018

Apple Confirms All Macs and iOS Devices Are Affected by 'Meltdown' Chip Flaw

Apple Inc. said all Mac computers and iOS devices, like iPhones and iPads, are affected by chip security flaws unearthed this week, but the company stressed there are no known exploits impacting users.
The Cupertino, California-based company said recent software updates for iPads, iPhones, iPod touches, Mac desktops and laptops, and the Apple TV set-top-box mitigate one of the vulnerabilities known as Meltdown. The Apple Watch, which runs a derivative of the iPhone’s operating system is not affected, according to the company.
Despite concern that fixes may slow down devices, Apple said its steps to address the Meltdown issue haven’t dented performance. The company will release an update to its Safari web browser in coming days to defend against another form of the security flaw known as Spectre. These steps could slow the speed of the browser by less than 2.5 percent, Apple said in a statement posted on its website.
Apple shares rose less than 1 percent to $173.56 in early trading Friday in New York.
Intel Corp. on Wednesday confirmed a report stating that its semiconductors contain a vulnerability based around a chip-processing technique called speculative execution. Intel said its chips, which power Macs and devices from other manufacturers, contain the flaw as well as processors based on ARM Holdings architecture, which is used in iOS devices and Android smartphones.
In December, Apple came under fire for iPhone software changes that reduced the performance of some older models of its smartphone. Alongside an apology and an explanation that a software change was implemented to balance out the effect of aging batteries, the company reduced the cost of replacing the power units from $79 to $29 through the end of 2018.
Security experts have said highly regulated sectors of industry, such as government offices and public health institutions, are most at risk of compromise as a result of the chip security vulnerability.

How to type?

Impress your friends and family by learning how to type faster! The following steps will increase your ability to touch-type at a faster speed. If you follow the steps in this article, over time you will become a better typist, able even to correct errors while looking at the screen instead of the keyboard.
Leaning to type
Place your fingers in the "home" position. That's the position in which your fingers will rest between keystrokes. No matter what part of the keyboard you're using, your fingers will always come back to rest in this position. Place your right index finger on the "J" key and let the other three fingers fall naturally onto the "K", "L" and ";" keys respectively. Place your left index finger on the "F" key and let the other three finger fall naturally onto the "D", "S", and "A" keys respectively. Both thumbs should rest on the space bar, but only the right thumb should key it.
You should feel a raised bump on both the "F" and "J" keys. These will allow your fingers to find the home position without having to look at the keyboard. Type each key from left to right. Type each letter covered by the fingers in the home position, going from left to right: a s d f j k l ;. You shouldn't have to move your fingers from their home positions. Just press the keys they are resting on. Repeat, but this time capitalize. Repeat the step above, but this time in capital letters: A S D F J K L :. Use the shift key to capitalize rather than the caps lock. Push the shift key by moving only your nearest pinkie finger and pressing and holding it while pushing the desired letter with your other hand.
In other words, when the letter you would like capitalized is typed with your left hand, you press the right shift key with your right pinkie. When the letter you would like capitalized is typed with your right hand, you press the left shift key with your left pinkie. Become familiar with the rest of the alphabet. Learn where each letter is positioned on the keyboard, and use the nearest finger to contact each key.
"q" "a" and "z" are typed with the left pinkie, and so are the tab, caps lock, and shift keys. "w" "s" and "x" are typed with the left ring finger. "e" "d" and "c" are typed with the left middle finger. "r" "f" "v" "b" "g" and "t" are typed with the left index finger. Your thumbs should never leave the space bar. "u" "j" "n" "m" "h" and "y" are typed with your right index finger. "i" "k" and the keys with "," and "<" are typed with the right middle finger. "o" "l" and the keys with ">" and "." are typed with the right ring finger. Your right pinkie finger is used for typing: "p", ";", ":", "'", """, "/", "?", "[", "{", "]", "}", "\", "|", and is used for pressing the shift, enter, and backspace keys.
Type your first sentence. Starting from the home position, type: "The quick brown fox jumps over the lazy dog". This sentence contains every letter in the alphabet, so it's a perfect sentence for practicing the correct finger positioning. Type the sentence over and over, watching your fingers to make sure they go to the right keys and immediately return to home position. Once you begin to feel comfortable with the way your fingers are moving, try to look at the screen while you type rather than looking at the keyboard. This is known as touch typing.

Sunday, 7 January 2018

Acer's Chromebook 11 brings USB-C charging to entry-level laptops

Acer’s hiding a quiet revolution in its mainstream Chromebook 11: two USB 3.1 Gen 1 (5Gbps) Type-C ports, which work for connectivity and for charging. Don’t run in a panic to the dongle store—you still get two USB 3.0 Type-A ports (whew!). But USB-C has remained rare in entry-level machines like the Chromebook 11. This tells us the tide is turning, and all the benefits of USB-C will soon be available even at budget levels.
Chromebook 11 specs and features
The Chromebook 11 CB311-8HT and CB311-8H, announced Saturday at CES and due to ship in April, otherwise represent a simple refresh of the company’s longstanding and popular product line. The pricing will start at $249. Here are the specs and features we know. 
CPU: Intel Celeron (part numbers were not specified)
RAM: 4GB is the only amount offered.
Display: 11.6-inch, 1366x768 IPS in touch (CB311-8HT) or non-touch (CB311-8H)
Storage: 16GB or 32GB eMMC
HDR webcam (high dynamic range, which should deliver better image quality) with integrated microphone
Connectivity:
Ÿ   Two USB 3.1 Gen 1 Type-C ports
Ÿ   Two USB 3.0 Type-A ports
Ÿ   One microSD card reader
Weight: 2.43 pounds
Thickness: 0.71 inch (no other dimensions were provided)
Battery life: Up to 10 hours
As with other recent Chromebooks, the Chromebook 11 supports the Google Play Store, so you get access to all the Android apps you could possibly want. Google’s still working on making these apps more Chromebook-friendly, but their simple availability has increased the usefulness of Chromebooks beyond education and basic web browsing.
Acer’s Chromebook 11 is so mainstream you might overlook it. This year, with Android app support and especially USB-C, it’s a sign that the average computing experience is moving forward—but gently, so you’re not shut out of your precious USB-A peripherals  just yet.

How to protect your PC from the major Meltdown and Spectre CPU flaws

A pair of nasty CPU flaws exposed this week have serious ramifications for home computer users. Meltdown and Spectre let attackers access protected information in your PC’s kernel memory, potentially revealing sensitive details like passwords, cryptographic keys, personal photos and email, or anything else you’ve used on your computer. It’s a serious flaw. Fortunately, CPU and operating system vendors pushed out patches fast, and you can protect your PC from Meltdown and Spectre to some degree.
It’s not a quick one-and-done deal, though. They’re two very different CPU flaws that touch every part of your operating system, from hardware to software to the operating system itself. Check out PCWorld’s Meltdown and Spectre FAQ for everything you need to know about the vulnerabilities themselves. We’ve cut through the technical jargon to explain what you need to know in clear, easy-to-read language. We’ve also created an overview of how the Spectre CPU bug affects phones and tablets.
The guide you’re reading now focuses solely on protecting your computer against the Meltdown and Spectre CPU flaws.
How to protect your PC against Meltdown and Spectre CPU flaws
Here’s a quick step-by-step checklist, followed by the full process.
Ÿ   Update your operating system
Ÿ   Check for firmware updates
Ÿ   Update your browser
Ÿ   Keep your antivirus active
First, and most important: Update your operating system right now. The more severe flaw, Meltdown, affects “effectively every [Intel] processor since 1995,” according to the Google security researchers that discovered it. It’s an issue with the hardware itself, but the major operating system makers have rolled out updates that protect against the Meltdown CPU flaw.
Microsoft pushed out an emergency Windows patch late in the day on January 3. If it didn’t automatically update your PC, head to Start > Settings > Update & Security > Windows Update, then click the Check now button under “Update status.” (Alternatively, you can just search for “Windows Update,” which also works for Windows 7 and 8.) Your system should detect the available update and begin downloading it. Install the update immediately.
You might not see the update, though. Some antivirus products aren’t playing nice with the emergency patch, causing Blue Screens of Death and boot-up errors. Microsoft says it’s only “offering the Windows security updates released on January 3, 2018 to devices running anti-virus software from partners who have confirmed their software is compatible with the January 2018 Windows operating system security update.” Security researcher Kevin Beaumont is maintaining an updated list of antivirus compatibility status. Most are supported at this point. If your AV isn’t supported, do not manually download the Meltdown patch unless you turn it off and switch to Windows Defender first.
But machines with compatible antivirus still may not automatically apply the update. If you’re sure your security suite won’t bork your system, you can also download the Windows 10 KB4056892 patch directly here. You’ll need to know whether to grab the 32-bit (x86) or 64-bit (x64) version of the update. To determine if your PC runs a 32- or 64-bit version of Windows, simply type “system” (without the quotation marks) into Windows search and click the top listing. It’ll open a Control Panel window. The “System type” listing will tell you which version of Windows you’re running. Most PCs released in the past decade will be using the 64-bit operating system.
Apple quietly worked Meltdown protections into macOS High Sierra 10.13.2, which released in December. If your Mac doesn’t automatically apply updates, force it by going into the App Store’s Update tab. Chromebooks should have already updated to Chrome OS 63 in December. It contains mitigations against the CPU flaws. Linux developers are working on kernel patches. Patches are also available for the Linux kernel.
Now for the bad news. The operating system patches will slow down your PC, though the extent varies wildly depending on your CPU and the workloads you’re running. Intel expects the impact to be fairly small for most consumer applications like games or web browsing, and initial testing supports that. Our FAQ digs into potential PC performance slowdowns from the patches. You still want to install the updates for security reasons.
Check for a firmware update
Because Meltdown’s CPU exploits exist on a hardware level, Intel is also releasing firmware updates for its processors. “By the end of next week, Intel expects to have issued updates for more than 90 percent of processor products introduced within the past five years,” it said in a statement on January 4.
Actually getting those firmware updates is tricky, because firmware updates aren’t issued directly from Intel. Instead, you need to snag them from the company that made your laptop, PC, or motherboard—think HP, Dell, Gigabyte, et cetera. Most prebuilt computers and laptops have a sticker with model details somewhere on their exterior. Find that, then search for the support page for your PC or motherboard’s model number.
Update your browser
You also need to protect against Spectre, which tricks software into accessing your protected kernel memory. Intel, AMD, and ARM chips are vulnerable to Spectre to some degree. Software applications need to be updated to protect against Spectre. The major PC web browsers have all issued updates as a first line of defense against nefarious websites seeking to exploit the CPU flaw with Javascript.
Microsoft updated Edge and Internet Explorer alongside Windows 10. Firefox 57 also wraps in some Spectre safeguards. Chrome 63 made “Site Isolation” an optional experimental feature. You can activate it right now by entering chrome://flags/#enable-site-per-process into your URL bar, then clicking Enable next to “Strict site isolation.” Chrome 64 will have more protections in place when it launches on January 23.
Keep your antivirus active
Finally, this ordeal underlines how important it is to keep your PC protected. The Google researchers who discovered the CPU flaws say that traditional antivirus wouldn’t be able to detect a Meltdown or Spectre attack. But attackers need to be able to inject and run malicious code on your PC to take advantage of the exploits. Keeping security software installed and vigilant helps keep hackers and malware off your computer. Plus, “your antivirus may detect malware which uses the attacks by comparing binaries after they become known,” Google says.
PCWorld’s guide to the best antivirus for Windows PCs can help you find the best option for your setup—though note the section above where we discuss the compatibility issues some AV programs are having with the new Windows patch.

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