Fix Netwtw04.sys BSOD Error in Windows 10

What is Windows ImageAcquisition High CPU & Disk usage? The Windows Image Acquisition is the driver model in charge of the communication between the graphics hardware and the operating system. There are times when it causes high disk and CPU usage in Windows 10 systems which results in slow performance of the computer. To fix this issue, read on as this post will help you in addressing the problem. The cause of this problem might have something to do with the hardware or the drivers. And so if your computer becomes slow because of the Windows Image Acquisition process, here are some suggestions that might be of help. You can try to restart the Windows Image Acquisition service, run a System File Checker Scan, disconnect & reconnect imaging hardware as well as update and reinstall the drivers and updating the graphics drivers. For a complete set of instructions, follow the given options below.

Option 1 – Try restarting the Windows Image Acquisition Service

• Tap the Win + R keys to open the Run dialog box.
• Then type “services.msc” in the field and hit Enter to open the Windows Services Manager.
• From there, look for the Windows Image Acquisition Service and check on its service Status.
• If the Service Status is blank, right-click on it and select Start. And if the service Status is Running right-click on it and select Restart. After that, check if your computer’s performance is now back to normal.

Option 2 – Try running a System File Checker scan

As you know, running a System File Checker scan can help in replacing missing files as well as repair the corrupted ones which might be the reason behind the problem.

• Tap Win + R to launch Run.
• Type in cmd in the field and tap Enter.
• After opening Command Prompt, type in sfc /scannow

The command will start a system scan which will take a few whiles before it finishes. Once it’s done, you could get the following results:

1. Windows Resource Protection did not find any integrity violations.
2. Windows Resource Protection found corrupt files and successfully repaired them.
3. Windows Resource Protection found corrupt files but was unable to fix some of them.

• Restart your computer after the scan is completed.

Option 3 – Try disconnecting and reconnecting the imaging hardware and then update and reinstall its drivers

It could be that the hardware that calls for the Windows Image Acquisition service has some issues which are why disconnecting and reconnecting the imaging hardware like scanners, printers, cameras can help in fixing the problem. In addition, you can also boot your computer in a Clean Boot State so that you can find the problematic hardware by hit and trial method. Refer to the steps below to do so:

• Log onto your PC as an administrator.
• Type in MSConfig in the Start Search to open the System Configuration utility.
• From there, go to the General tab and click “Selective startup”.
• Clear the “Load Startup items” check box and make sure that the “Load System Services” and “Use Original boot configuration” options are checked.
• Next, click the Services tab and select the “Hide All Microsoft Services” check box.
• Click Disable all.
• Click on Apply/OK and restart your PC. (This will put your PC into a Clean Boot State. And configure Windows to use the usual startup, just simply undo the changes.)

Option 4 – Try updating the Graphics drivers

• First, boot your computer into Safe Mode.
• After that, tap the Win + R keys to launch Run.
• Type in devmgmt.msc into the box and tap Enter or click OK to open the Device Manager.
• After that, a list of device drivers will be displayed. From there, look for the Display Adapters and click on them.
• After that, right-click on each entry under the Display Adapters and select the “Uninstall Device” option from the menu.
• Now restart your computer.
• After restarting your computer, go to the Settings app and Check for Updates in the Windows Update section.

Note: You also have the option to go directly to the website of your graphics card manufacturers like NVIDIA, Intel, or AMD and go to the section called Drivers then check if there’s a new available update – if there is, download and install it.

Error code 0xc000021a - What is it?

Error code 0xc000021a occurs when the system is unable to start or there’s a failure in critical system processes. Normally, it would take about several seconds for the system to boot and while on the startup process, error code 0xc000021a may take place to block the system to boot up. Users will get a blue screen of death (BOSD) when this error occurs. When upgrading to Windows 10, be careful; you might encounter other error messages such as error code 8007002c. 

Solution

Error Causes

There are several reasons why error code 0xc000021a occurs. It is important to have a full understanding of what caused the blue screen of death before attempting to fix the error by yourself. See below for a few common causes:

• Computer malware has infiltrated your device.

• Important files such as Winlogon.exe and Csrss.exe are damaged. Winlogon.exe file is responsible for handling the login and logout processes while Csrss.exe is a vital part of Microsoft Client or Server ‘Runtime Server Subsystem’. Once one of these files is damaged or deleted, a stop error will occur.

• When there are mismatched system files installed or system upgrading process failed or still incomplete.

• Premature unloading of Wbemprox.dll

• Newly installed third-party software is not compatible with the operating system.

• There are corrupted, outdated, or incorrectly configured device drivers.

• There’s insufficient space in the system partition. Once the system partition is full, certain errors such as error code 0xc000021a will manifest.

• Windows registry is corrupted or damaged due to a software or system change. This means there are registry entries that are not cleared after uninstalling an application.

Further Information and Manual Repair

In fixing error code 0xc000021a, you might want to try and manually do so. Manual repair methods can give users effective and efficient solutions, addressing the root problems in relation to Windows error codes. Once the manual repair method is correctly implemented, users will be able to resolve issues immediately. However, there might be instances when a Windows professional is needed. In such cases, seek help from a certified Windows expert or you might want to consider using an automated tool whenever necessary.

Method One: Convert the Drive or Partition from NTFS to GPT

In order to fix Error code 0xc000021a in Windows 10, you might need to convert the partition or drive from NTFS to GPT. See below for the procedure: 1. Shut down your device then put in the Windows installation USB key or DVD. 2. Boot your device to the USB key or DVD in UEFI mode. 3. Inside the Windows Setup, open a Command Prompt window by pressing Shift + F10. 4. Type diskpart in the Command Prompt window to open the diskpart tool. 5. Type list disk to identify which drive to reformat. 6. Select which drive to reformat by typing select disk in the command prompt. Afterward, type clean then hit Enter. Once done, type convert gpt to be able to convert the drive from NTFS to GPT. Finally, type exit and press Enter. You can now close the Command Prompt window. 7. Once the partition or drive is converted from NTFS to GPT, the user can now continue the Windows Setup installation. NOTE: Select Custom in choosing which installation type to use. The drive will then appear as a single area of unallocated space. Choose that unallocated space then select Next. At this point, Windows will now begin the installation.

Method Two: Fix System File Errors

There are times when system files get corrupted or damaged which will result in system failure. If this is the case, you can use a Windows free tool to repair corrupted or damaged system files. 1. Right-click on the Start button then selects Command Prompt (Admin) from the list to open a Command Prompt window. 2. Once the Command Prompt appears, type sfc /scannow then hit Enter. Wait until the process completes. If the process is completed and it doesn’t report any error or issues that remain unsolved, you might want to employ the next method.

Method Three: Reset Windows 10

Resetting Windows will delete all software and user accounts installed in the operating system and will reinstall a fresh Windows. 1. Boot your device using a Windows installation USB key or DVD. Select Repair your computer to locate the Troubleshoot option. Afterward, choose Reset this PC. NOTE: If the device is able to boot the system, you can reset Windows without using a Windows installation USB key or DVD. You just have to boot the device then navigate to Settings in the Start button. Choose Update & Recovery then select Recovery found on the left pane. Choose Reset this PC option then select Go back to an earlier build and Advanced startup. Select Get Started button found in the Reset this PC tab. 2. Depending on your device’s condition, you can either select Keep my files or Remove everything. Both options will remove all applications installed in the device and will revert to default settings. 3. Choose either Just remove my files or Remove files and clean the drive depending on the situation. If you choose the Remove files and clean the drive option, the procedure will take longer as it will erase all the files permanently. In this case, deleted files cannot be recovered. However, if you don’t want to remove files permanently, select Just remove my files. 4. Once you’ve decided how to reset your system, click on Next once the Warning screen appears. Afterward, choose Reset once prompted. When the process completed, click on Continue.

Method Four: Download an Automated Tool

Can’t seem to put up with the long and technical manual repair process? You can still fix this error by downloading and installing a powerful automated tool that will surely get the job done in a jiffy!

As you know, you can encounter Blue Screen errors at any given point after your computer boots up and can just reboot it randomly which results in loss of unsaved work. One of these Blue Screen errors is the “REGISTRY_ERROR”. This kind of Stop error has a bug check value of 0x00000051 which indicates your computer’s registry has encountered a severe error. There could be a number of causes for this error but at the time of writing, it is quite difficult to narrow them down to one component. If you face this kind of Blue Screen error, worry not as this post will guide you in fixing it. As mentioned, this error indicates that there is something wrong with the registry, particularly an I/O error while it tried to read one of its files. This may be caused by hardware issues or file system corruption. It could also be due to failure in a refresh operation which is only used by the security system and only when resource limits are encountered. To fix the Registry_Error Blue Screen, you can try to use the CHKDSK utility or the System File Checker, or the DISM tool or run the Blue Screen troubleshooter. You may also try to reset your computer or repair Windows by using installation media.

Option 1 – Run the Check Disk utility

The first thing you can do to fix the REGISTRY_ERROR Blue Screen error is to run the Check Disk utility. How? Follow these steps:

• In the Windows Search box, type “command prompt” and from the search results, right-click on Command Prompt and select “Run as administrator”.
• After opening Command Prompt, type this command and tap Enter: chkdsk <Drive Letter>: /f /r /x /b
• The command you entered will start to check for errors and fix them automatically. Else, it will throw an error message saying, “Chkdsk cannot run because the volume is in use by another process. Would you like the schedule this volume to be checked the next time the system restarts? (Y/N)”.
• Tap the Y key to schedule Disk Check the next time your computer restarts.

Option 2 – Run the Blue Screen Troubleshooter

The Blue Screen troubleshooter is a built-in tool in Windows 10 that helps users in fixing BSOD errors like REGISTRY_ERROR. It can be found in the Settings Troubleshooters page. To use it, refer to these steps:

• Tap the Win + I keys to open the Settings panel.
• Then go to Update & Security > Troubleshoot.
• From there, look for the option called “Blue Screen” on your right-hand side and then click the “Run the troubleshooter” button to run the Blue Screen Troubleshooter and then follow the next on-screen options. Note that you might have to boot your PC into Safe Mode.

Option 3 – Run System File Checker

• Open Command Prompt with admin privileges.
• After that, execute this command: sfc /scannow
• Once the scan is completed, restart your computer and then check if the REGISTRY_ERROR is now fixed.

Option 4 – Run the DISM tool

You can try running the Deployment Imaging and Servicing Management or DISM tool to fix the REGISTRY_ERROR Blue Screen error. Using this built-in tool, you have various options such as the “/ScanHealth”, “/CheckHealth”, and “/RestoreHealth”.

• Open the Command Prompt with admin privileges.
• Then type in the following commands and make sure to hit Enter right after you type each one of them:
  • Dism /Online /Cleanup-Image /CheckHealth
  • Dism /Online /Cleanup-Image /ScanHealth
  • exe /Online /Cleanup-image /Restorehealth
• Do not close the window if the process takes a while as it will probably take a few minutes to finish. Once it’s done, restart your computer.

Option 5 – Reset your computer

• Tap the Win key or click on the Start button located in the Taskbar.
• Then click on the Power button at the bottom right portion of the screen.
• Next, press and hold the Shift key on your keyboard and then click on Restart. This will restart your Pc into the Advanced Startup options.

Note: Once you have access to the Advanced Startup options, you have to go to the setting which allows you to Reset your Windows 10 PC. All you have to do is select Troubleshoot > Reset this PC to reach the following screen Afterward, select either the “Keep my files” option and then proceed to the next on-screen instructions that follow to reset your Windows 10 computer without losing your files.

Option 6 – Try to perform repair install by creating a Windows 10 installation media

• Click this link and then click the Download Tool Now button.
• Next, click the “Use the tool to create installation media (USB flash drive, DVD, or ISO file)…” option and follow the next given instructions on the screen.
• Now select the ISO file option in step 5.
• After that, you should now have an ISO file.
• Next, go to the location where you’ve downloaded the ISO file.
• Then right-click on the Windows 10 ISO file and select the Open with option and then select File Explorer.
• Now click on “setup.exe” and follow the next instructions that appear on the screen. When asked, you have to select either Nothing (clean install) or Keep personal files only option. Take note that you must not select the “Keep personal files, apps, and Windows settings”.

When it comes to booting an operating system on a computer, one of the most essential pieces of software you can use is the UEFI. In fact, a lot of users now prefer to use UEFI instead of BIOS. It also depends on whether the UEFI or the BIOS is supported on the motherboard. Recently, a number of users reported an issue with UEFI where they were unable to find it under the Advanced Options screen where it’s supposed to be located. The missing UEFI Firmware settings in the Advanced Options could be caused by several reasons. It is possible that the access to the UEFI menu is blocked or it could also be due to the Extra Fast Startup feature being enabled. It is also possible that the operating system is installed in Legacy mode. There are several options to try to fix this issue. You need to check if your computer supports UEFI or you could also try to disable Fast Startup or bypass the Extra Fast Startup feature. You can also use a boot to UEFI shortcut as well as check the CMOS battery.

Option 1 – Try checking if your computer supports UEFI

The first thing you have to do is to verify if your computer supports UEFI. If your computer does not support UEFI, then it’s no wonder why you don’t see the UEFI Firmware settings in the Advanced Options.

Option 2 – Try turning off Fast Startup

• First, boot your computer in Safe Mode.
• Once your computer is booted in Safe Mode, tap the Win + R keys to open the Run dialog box and type in “control” to open the Control Panel.
• Next, click on the Hardware and Sound section and click on Power Options.
• Afterward, select the “Choose what the power buttons do” option from the left side menu pane.
• Now click on Change settings that are currently unavailable and uncheck the entry that says, “Turn on fast startup (Recommended)”.
• Then click on Save Changes and restart your computer and see if it has fixed the problem or not.

Option 3 – Try bypassing the Extra Fast Startup feature

As mentioned, the missing UEFI Firmware settings could be due to the Extra Fast Startup feature. To fix it, you have to disable this feature. All you have to do is tap and hold the Shift key and click on the Shutdown button from the Start button. This will boot your PC with the UEFI booting from the beginning and then use the hotkey for your motherboard to boot into the UEFI setup.

Option 4 – Try using a boot to UEFI shortcut

• Right-click on any empty space on your Desktop and select New > Shortcut.
• This will open a new mini window. And here, you have to type this in the text field: shutdown /r /fw
• After that, click on Next and name the desktop shortcut and then click on Finish.
• Next, right-click on the newly created shortcut and select Properties.
• Click on the Advanced button and select the “Run as administrator” option.
• Now click OK to save the changes made. Each time you execute this shortcut, your computer will automatically be booted to the UEFI Firmware Settings.

Option 5 – Try to check the CMOS battery

Another thing you can do is check the CMOS battery physically on the motherboard and see if it has to be replaced since a damaged CMOS battery can also cause the issue with the missing UEFI Firmware settings.

Option 6 – Set your computer from Legacy to UEFI

If applicable, you can try to set your computer from Legacy to UEFI to resolve the problem.

• In the Windows Search box, type “command prompt” and from the search results that appear, right-click on Command Prompt and select the “Run as administrator” option.
• After that, execute this command: mbr2gpt.exe /convert /allowfullOS
• Now, wait until the process is completed since you can track its process on your screen.
• Once it’s done, go to Settings > Update & Security > Advanced Startup options and from there, click on Restart Now. This will restart your computer and give you advanced options.
• Next, select Troubleshoot > Advanced Options where you will see further options including System Restore, Startup Repair, Go back to the previous version, Command Prompt, System Image Recovery, and UEFI Firmware Settings.
• Now select the UEFI Firmware Settings. This will take you to the BIOS. Boot Mode is typically available under Boot > Boot Configuration. Once you’re there, set it to UEFI and then save the changes you’ve made. After that, your computer will restart.

If you are trying to install or upgrade your Windows 10 computer but suddenly encountered an error message saying, “Windows could not configure one or more system components”, read on as this post will show you how you can fix the problem. You are not alone in experiencing this problem as other users also reported having the same scenario. Some of them reported getting the following error message:

“Windows could not configure one or more system components. To install Windows restart the computer with error code 0xc1900101-0x30018.”

When you check on the Windows 10 rollback log, you will see a part with the “iisetup.exe” that’s related to the abort. Usually, the upgrade process completes over 50% and gets stuck and then rolls back later on and generates the error logs. This kind of error, in most cases, appears during the upgrade of Windows 10 and is related with the Internet Information Services or IIS in Windows 10. For some unknown reason, it restricts the installation or the upgrade which causes the error to appear. To fix the “Windows could not configure one or more system components” error, you can try to remove the IIS from the Windows Features or rename the “inetsrv” folder. You could also move all the folders related to IIS to another drive. For more details, refer to the options provided below.

Option 1 – Try to remove the IIS from Windows Features

The IIS is installed from the Windows Features and you can find it at Control Panel > Programs. From there, uncheck the checkbox for the Internet Information Services. Once done, click on the OK button to save the changes. Note that this process will get rid of all the related programs, services, and folders from Windows 10. So if you want to, you can just install them later on or use an offline installer from the official site of Microsoft.

Option 2 – Try renaming the inetsrv folder

The next option you can check out to resolve the problem is to rename the “inetsrv” folder. If you have uninstalled IIS from the Windows Features, this should remove the folders as well, however, it didn’t remove the folder then you have to delete the folders that are related to the IIS by following these steps:

• First, you have to boot into the Advanced Recovery Mode and from there, open Command Prompt.
• Next, execute this command to rename the folder from this location, C:Windowssystem32inetsrv: rename C:/Windows/system32/inetsrv/inetsrv.old
• Once done, boot into your computer normally and try to upgrade Windows 10 again, and check if the problem is fixed or not.

Option 3 – Try to move the folders related to IIS to a different drive

• Tap the Win + R keys to launch the Run utility and type “services.msc” in the field and hit Enter to open the Windows Services Manager.
• Next, look for the Application Host Helper Service from the list of services and stop it.
• Once done, take ownership of the “WinSxS” folder and then move the *windows-iis*.*” folders to another drive. You can just search using the “*windows-iis*.*” keyword in the Start Search.
• Next, tap the Ctrl + X keys and paste the folders to another drive.
• After that, start the update process for Windows 10 again.

The new thing from Mozilla is not a browser, it is a VPN!

Besides Firefox, Mozilla offers now Firefox Relay, an app helping you to mask your email and phone number, and a new Mozilla VPN.

Mozilla has recently announced a new subscription model that will let you use all products together for $6.99 per month. Although this is a little more expensive than the competition that goes around for $5 per month note that with this subscription you are having access to all services, not just VPN.

VPN will not only hide your IP address but will also make sure websites cannot access your real location and it encrypts all of your network activity. Relay will give you protection against spam, serving as a shield for your email and limiting spammers from access to your real email address and phone number. With Mozilla subscription will let you use both services.

Due to the latest android malware security analyst, there are alarmingly 5.8 million downloads of applications that will steal your Facebook data, your Facebook login credentials! Russian anti-malware company Dr.Web has found Trojan apps that steal your Facebook login credentials by tricking users into entering their private information in order to eliminate in-app ads. All of the applications have been removed from the play store and cannot be installed anymore but please do check your phone in order to remove them from your phone as well.

List of malware applications:

If by any chance you have any application from this list, consider uninstalling it from your phone for security reasons.

• PIP Photo
• Processing Photo
• Rubbish Cleaner
• Inwell Fitness
• Horoscope Daily
• App Lock Keep
• Lockit Master
• Horoscope Pi
• App Lock Manager

During the investigation, Dr.Web analysts found an additional Trojan app that had previously made its way onto the Google Play Store. Image editing software app EditorPhotoPip had already been removed but could be downloaded through aggregator websites.

This post will guide you in fixing the (1058) ERROR_SERVICE_DISABLED error you can encounter when trying to launch various games. Usually, this error pops up during startup and prevents you from running the game. In fact, this error has become quite a headache for many users. Some of the games it affects are Smite, Paladins, Far Cry, and many more. In most cases, this error is caused by missing or corrupted game files. It could also be caused by the anti-cheat utility you might have installed along with your games. Whichever the cause is, you can try to check out the possible fixes given below to resolve the (1058) ERROR_SERVICE_DISABLED error.

Option 1 – Verify the Integrity of the Game files

This is the first option you can try no matter what kind of issues you are having with Steam games.

• Double click on the game’s icon located on your Desktop and then go to the Library tab in the Steam window.
• From there, look for GTA V from the list of games installed in your library.
• Next, right-click on its entry and select Properties.
• After that, navigate to the Local Files tab and click the “Verify Integrity of Game Files” button.
• Now, wait for the tool to complete checking the game’s integrity. You should see that some of the files may have been downloaded.
• Reopen the game and see if it now runs properly without crashing.

Option 2 – Apply some tweaks in the Service’s startup settings

As pointed out earlier, the error can also occur due to the anti-cheat tools that were installed alongside the game. These tools are usually used by games to check if you are running something which might give you an unfair advantage over other players. These anti-cheat tools include but are not limited to BattlEye, EasyAntiCheat, and PunkBuster. The error might occur if the service’s startup settings are not correctly configured which is why you can apply some tweaks in order to resolve the problem.

• Tap the Win + R keys to open the Run dialog box.
• Next, type “services.msc” in the field and hit Enter or click OK to open Services.
• From the list of Services, look for any of the services mentioned above such as BattlEye, EasyAntiCheat Service, or PunkBuster Service. Then right-click on the service and select Properties from the context menu.
• After that, check if the service is started by checking the Service status. If it is started, click on the Stop button to stop the service and if it is already stopped, leave it as it is, at least for now.
• Next, make sure that the Startup type menu in the Service’s properties is set to Automatic before you go on.
• Now confirm any dialog boxes that may appear as you set the Startup type and then click on the Start button located in the middle before you exit Properties.

Note: You might get the following error message when you click on the Start button:

“Windows could not start the service on Local Computer. Error 1079: The account specified for this service differs from the account specified for other services running in the same process.”

If you got the error message above, then here’s how you can fix it:

• Tap the Win + R keys to open the Run dialog box.
• Next, type “services.msc” in the field and hit Enter or click OK to open Services.
• From the list of Services, look for any of the services mentioned above such as BattlEye, EasyAntiCheat Service, or PunkBuster Service. Then right-click on the service and select Properties from the context menu.
• Now go to the Log On tab and click on the “Browse…” button.
• After that, type in your account’s name under the “Enter the object name to select” box and click on Check Names then wait for the name to be recognized.
• Then click OK once you’re done and type in the password in the Password field when you are prompted to do so. This should resolve the issue.

Option 3 – Try reinstalling the Anti-cheat program

If the first two options did not work out, you can try reinstalling the anti-cheat program.

• Open Steam from your Desktop or by searching for it in the Start menu.
• After opening the Steam client, go to the Library tab in the Steam window and then look for the Rust entry from the list.
• Next, right-click on the game’s icon in the library and select Properties.
• Now go to the Local Files tab under Properties and click the Browse Local Files button.
• From there, look for BattlEye, EasyAntiCheat, or PunkBuster folder depending on the game, and then double click on it to open the folder.
• Then right-click on EasyAntiCheat_setup.exe or the BattlEye installed file in the folder or PunkBuster and select the Run as administrator option.
• Exit the Steam client by clicking Steam > Exit from the menu located at the top.

Skinning of applications is not new to PC users, but did you knew you could skin Steam? With skin, you can customize the UI and style of the client to what you want making it more personal and to your liking. First thing is to find the skin that you would like to install. There are a lot of sites where you could find custom made Steam skins but we would recommend steamskins.org The site itself is organized in tabs with different sections, once you click on the tab you will get a list of skins available for chosen section. If you click on the skin you will be taken to skin page detail where you can find what skin is aiming for, its legibility, a record of how the skin has been altered over time, or some mix of these aspects. Note that some skins might have issues like some buttons might be missing from big picture mode but so far none of the skins has any kind of client breaking feature, only functionality one.

Downloading skin

Once you have chosen desired skin and while on the skin details page, scroll to the middle of the page just above the Related Skins sections with two options: Direct Download and External Download. Now usually I would recommend Direct download but in this case, I would advise going with External Download for the simple reason that the External link will send you to the developer's website where there is a higher chance to get the latest updated skin.

Installing it in Steam

Once the skin is downloaded you will first need to create a skin folder inside your Steam installation location. Navigate to your Steam installation folder (default: C:\Program Files (x86)\Steam) and create a new folder inside it. Give new folder name Skins and confirm. Extract the skin zip file in the newly made folder. Once the file is extracted you can delete the ZIP file if you wish. Go to your Steam client and go to Steam>Settings. In settings select Interface on the left bar and on the right part then click the Select the skin you wish Steam to use the drop-down menu and select the skin that you wish to use. Confirm and restart your Steam client

Reverting to old skin

If you found skin unappealing or, unfortunately, has some functions missing you can always choose another skin or revert back to default Steam skin. Default Steam skin is named in the drop-down menu as < default skin >.

Compare Exchange128 error – What is it

Some Windows 7 and Windows 8.1 users reported experiencing a Compare Exchange128 error when trying to upgrade to Windows 10. The error reads, “You can’t install Windows 10 because your processor doesn’t support CompareExchange128”. In order to upgrade to Windows 10 (64-bit), the CMPXCHG16B instruction must be present. If you receive this error, this mostly means that your CPU doesn’t have the CMPXCHG16B instruction.

Solution

Error Causes

The CompareExchange128 error normally occurs due to two possible reasons:

• CPU lacks CMPXCHG16b Instruction
• Old & Outdated BIOS – Even if your CPU has the CMPXCHG16b instruction, the CompareExchange128 issue can still occur if you have an older BIOS.

Further Information and Manual Repair

One main requirement to upgrade to Windows 10 is for your CPU to have the CMPXCHG16b instruction. You also need the right BIOS version to guarantee a smooth installation. See below on how to manually fix this issue.

NOTE: If you don’t feel confident using the manual methods listed below, it’s highly advisable to get help from an expert technician. If you don’t know someone, you can also use an automated tool to fix this.

Before performing any fixes, try to determine first if the cause of the error is due to your CPU lacking the CMPXCHG16b instruction. You can use a CPU Info tool that provides complete details about your processor, memory, and motherboard. If you’re looking for more in-depth information, you might also try command-line utilities. But, the safest and easiest way to check this is by simply searching online. Try using the search query: <CPU Model> CMPXCHG16b

Method 1 – Update your BIOS

This method will download the latest BIOS from your motherboard’s manufacturer. This makes sure your CPU has the CMPXCHG16b instruction needed to complete the Windows 10 64-bit installation. To update your computer’s BIOS, complete the following steps:

1. Determine first the current BIOS you have on your computer. Open System Information Windows app and type msinfo32 in the search bar. The BIOS version will appear under the processor speed. Record it somewhere.

2. Go to the support page of your motherboard’s manufacturer. Find if there’s any update on the BIOS that you’re currently using. If you find one, download the BIOS update file available. Make sure that you’re looking into the right model and you download all the necessary documentation. Otherwise, the BIOS update might not work.

3. Update your BIOS. Most BIOS update steps are straightforward. Just make sure to follow the steps provided.

Method 2 – Install Windows 10 32-bit version

If updating the BIOS doesn’t work, what you can do is install a 32-bit version of Windows 10 instead of the 64-bit version. Here’s how to do this:

1. Download and install the 32-bit version of Windows you currently have. If you have a Windows 7 64-bit version, get the 32-bit version of Windows 7. The same goes for Windows 8.1. When you do this, you might want to back up your files first. Remember that installing the 32-bit version works like other installations, and could delete some of your files.

2. After installing the 32-bit version, go to Updates and install all the necessary updates. This includes upgrading to Windows 10 if you’re asked to.

3. When you installed the Windows 10 upgrade, you’ll now have the Windows 10, 32-bit version installed. This will be the version activated on Microsoft servers. Despite this, the activated version stored is only applicable to your computer’s hardware, not the version of Windows 10.

4. Download Windows 10, 64-bit version.

5. Prepare an empty DVD or USB flash drive. Use Creation Media software then click the Create Installation Media for Another PC option.

6. Install the 64-bit Windows 10 version you downloaded from Step 4. Make sure not to put anything when you’re asked to input the serial number.

7. Once the installation is complete, you’ll have the 64-bit version of Windows 10.

Method 3 – Buy a new processor/motherboard

If the above two methods don’t work, there’s a great chance that this error occurs because of an outdated processor/motherboard. Your next possible solution is to buy an updated model that’s fully compatible with 64-bit Windows 10.

Method 4 – Download an automated tool

If all else fails, you might want to consider using this powerful automated tool to quickly fix the problem and any other computer-related issues.