How to Fix win32kfull.sys BSOD Error in Windows 10

Error Code 0xC004C020 (Code 0xC004C020) – What is it?

Error code 0xC004C020 (Code 0xC004C020) is an error that occurs when you attempt to activate a copy of Windows 7 with a key, but the key has already been activated multiple times. When receiving this error code, it means that you are trying to exceed the number of times that the Windows 7 key is allowed to be activated. Common symptoms include:

• Attempting to install Windows 7 with a key and a dialog box with the code 0xC004C020 is displayed.
• The computer is unable to install Windows 7 with the key.
• Certain features will refrain from working until the correct key has been entered.

Solution

Error Causes

Error Code 0xC004C020 occurs when you are not able to install Windows 7 using a previously purchased key code that has been installed numerous times previously on the same computer.

• You are not able to use your previously used key to install Windows 7.
• You have used the Windows 7 key the maximum number of times allowed.

Error code 0xC004C020 simply means that the Windows 7 code that you are trying to use to install Windows 7 has already been used the maximum number of times allowed, even when installing it on the same computer that it was previously used on. This would indicate that the key is what is known as a volume key- meaning that there is a cap on the number of uses.

Further Information and Manual Repair

Many people encounter this problem when they are doing software development or testing and need to reinstall Windows 7. Some people might also encounter this error code when installing Windows 7 with a key that was used too many times previously. It should be noted that there are several ways to fix this problem, but if nothing is working, you should contact a computer repair technician.

Method One

Activate by phone- the long method.

1. Click the start button, right-click Computer, click Properties, and then click Activate Windows.  This will open Windows Activation.
2. Click on “Show me other ways to activate”.
3. Find and enter the Windows 7 key, then click Next.
4. Click on “Use the automated phone system”. If you are prompted for an administrator password or a confirmation, confirm or type the password now.
5. Select the location nearest to you and then click the Next button.
6. There will be a list of available phone numbers, choose one and call it. There will be an automated system that will guide the activation process.
7. Enter the installation ID when prompted, it will be listed on your computer screen.
8. The phone system will give you a confirmation ID, write this down.
9. Type this confirmation ID into the space that is provided by step 3. This will be in the activation dialogue. Then, click NEXT and follow the instruction.
10. If this is not successful, stay on the line and be transferred to a customer service representative that will assist you.

Method Two

Activate by phone- this is a much simpler method.

1. Click on Start, type: slui.exe 4 into the Search box
2. Press Enter on the keyboard.
3. Pick your country.
4. Choose the Phone Activation option; stay on hold to speak with a customer service representative.

Method Three

Error code 0xC004C020 occurs if you have used your Windows 7 activation key on multiple computers, or multiple times on the same computer. You are not allowed to exceed the uses of the key—you should consider purchasing a new key if this is the case. A Windows 7 key is available for purchase online through the Microsoft website, in the shop section. The new product key must then be activated within 30 days, or it becomes no longer valid. It can be activated online or through the telephone. If it is not activated on time, features will stop working until the new key has been activated. This should be the last resort method, as you should not have to purchase a new Windows 7 key code if it is not necessary. If you wish to always have at your disposal a utility tool to fix these Windows 10 and other related issues when they do arise, download and install a powerful automated tool.

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”.

In their search for making Windows, a better operating system Microsoft has come up with an insider program that will collect telemetry and send it to Microsoft in order to provide enough information to make a better OS. Being in an insider program is per choice basis and it is not forced to anyone. This guide will cover how to turn off the insider program since its constant updates and telemetry can slow down the internet. So if you decided that you no longer want to be part of this program here is how to turn it off.

• Press ⊞ WINDOWS + R to open the run dialog
• Type in dialog gpedit.msc and press ENTER
• You will find yourself in the Local Group Policy Editor Window. Inside windows find: Computer Configuration > Administrative Templates > Windows Component > Windows Update > Windows Update for Business
• Move to the right pane and double-click on the Manage Preview Builds option
• Inside the Manage Preview Builds window, check the Enabled radio button
• Go to the Options section, and using the drop-down menu, set the preferred release channel
• Select Apply and then OK

If you suddenly encounter the DRIVER_CORRUPTED_EXPOOL Blue Screen of Death error when using your computer, then there might be some issues with the device drivers on your Windows 10 computer. This kind of BSOD error can occur at any point while you are using your PC. Its main cause is due to some error in the System Pool where a driver becomes incompatible with the operating system or when the configuration files get corrupted for some reason. If you are one of the users who are currently inconvenienced by the DRIVER_CORRUPTED_EXPOOL error, worry not, as this post will give you some potential fixes that might help resolve the problem.

Option 1 – Perform a System Restore

Performing System Restore might help you in fixing the DRIVER_CORRUPTED_EXPOOL Blue Screen error. You can do this option either by booting into Safe Mode or in System Restore. If you are already in the Advanced Startup Options, just directly select System Restore and proceed with the next steps. And if you have just booted your PC into Safe Mode, refer to the steps below.

• Tap the Win + R keys to open the Run dialog box.
• After that, type in “sysdm.cpl” in the field and tap Enter.
• Next, go to the System Protection tab then click the System Restore button. This will open a new window where you have to select your preferred System Restore point.
• After that, follow the on-screen instructions to finish the process and then restart your computer and check if the problem is fixed or not.

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 DRIVER_CORRUPTED_EXPOOL error. It can be found on 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 – Update the Device drivers

The device driver installed in your computer might be incompatible with your operating system which is the reason why the DRIVER_CORRUPTED_EXPOOL Blue Screen error occurs. To fix that, you have to update your device drivers.

• Tap the Win + R keys on your keyboard to open the Run dialog box.
• After that, type “msc” in the field and hit Enter or click OK to open the Device Manager.
• After opening the Device Manager, update all the outdated Device drivers on your computer.
• Next, right-click on all the driver entries that are appropriately labeled, and then click the Update driver option.
• Now restart your PC and check if the BSOD error is fixed or not.

Option 4 – Uninstall any faulty device drivers

• Tap the Win + R keys on your keyboard to open the Run dialog box.
• After that, type “msc” in the field and hit Enter or click OK to open the Device Manager.
• From there, look for any device driver which has a yellow exclamation mark which indicates that something is wrong with them.
• And then right-click on each one of them and click on Uninstall.
• Once you’re done uninstalling the faulty drivers, restart your computer and allow your computer to reinstall the drivers you just uninstalled.

Option 5 – Try running the System File Checker

System File Checker or SFC is a built-in command utility that helps in restoring corrupted files as well as missing files. It replaces bad and corrupted system files with good system files that might be causing the Machine Check Exception BSOD error. To run the SFC command, follow the steps given below.

• 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.

Option 6 – Try updating the BIOS

As you know, the BIOS is a sensitive part of a computer. Even though it is a software component, the functioning of the hardware depends on it largely. Thus, you must be careful when modifying something in the BIOS. So if you don’t know much about it, it’s best if you skip on this option and try the other ones instead. However, if you are well-versed in navigating the BIOS, then follow the steps below.

• Tap the Win + R keys to open the Run dialog box.
• Next, type “msinfo32” in the field and press Enter to open System Information.
• From there, you should find a search field on the bottom where you have to search for the BIOS version and then press Enter.
• After that, you should see the developer and version of the BIOS installed on your PC.
• Go to your manufacturer’s website and then download the latest version of BIOS on your computer.
• If you are using a laptop, make sure that you keep it plugged in until you have updated the BIOS.
• Now double click on the downloaded file and install the new BIOS version in your computer.
• Now restart your computer to apply the changes made.

Option 7 – Try resetting Windows 10

To fix this BSOD error, you can try resetting Windows 10. Doing so won’t get rid of any file in your system – instead of erasing all your media files and documents, this reset option resets all the system settings and files.

Manually cleaning your PC registry may be the worst or best thing you ever decide to do. Registry keys that lie around on your computer, unused, can cause your computer to lag. This can end up in your computer not being able to load the easiest of programs and being slow at loading anything, let alone something that would take up a decent amount of memory. If your computer has slowed to almost an absolute stop, it is most probably the registry’s fault and the only option then is to clean it. You can get programs to do this for you, but they can be riddled with inaccuracies and viruses that could harm your computer even more. This is why some people choose to manually edit their computer. However, this is not without its flaws.

Registry Keys

Registry keys tend to have really long names. These names will be full of numbers and hyphens and will most likely give you no indication of what they do. Even some computer experts find it hard to understand what every computer’s registry keys do. This can make it very hard to see which ones are causing the problem; and if you don’t know what’s causing the problem, then there is no way you will be able to fix it. Some registry keys will be completely menial in what they do but some could be vital to even allow Windows to work on your computer.

Manual Registry Repair

Registry keys can also cause huge problems if you manually delete the wrong one. A lot of registry cleaners have the option to revive a key that they have deleted on you, which means that fixing an error that they made would be easy enough to do. However, when you manually delete registry keys, it will be an awful lot harder to get them back to work again afterward. This can cause your computer many problems and if you delete even one wrong key it is possible your computer will not even start. With the horrid naming system they have as well, it makes it very hard to determine what is important and what is not, which means it is all too likely that you will delete something important. However, those are the risks you have to take when you are cleaning out your registry. A registry cleaner has the same likelihood of messing with your computer and deleting something wrong that you have, so it is the same either way however a registry cleaner will do it with less hassle. But, some people say that if you do it yourself, it’s more likely to be right; that is why they prefer to do it manually and that is alright.

Conclusion

So, if you are manually deleting your registry keys that are unused, you’ll have to use a program that comes with Windows known as ‘regedit.exe’ which is incredibly difficult to use but may just be worth the hassle in the end. So, you don’t really need to put up with a slow computer, but be careful when messing with your registry manually! To repair and resolve this and other PC-related issues Click Here to download Restoro.

RadioRage is a potentially unwanted application developed by Mindspark Inc. This browser add-on is compatible with Mozilla Firefox, Internet Explorer and Google Chrome and claims to enhance the Internet browsing experience by allowing users to listen to their favorite music via the installed toolbar.

RadioRage Toolbar is categorized as adware since it infiltrates computers and after successful installation, this browser extension redirects browsers to home.tb.ask.com. And changes your default search engine to myway.com.

While active on your computer RadioRage collects user information such as browsing data, website clicks, and sometimes even sensitive user information, that it later sells / forwards to its ad distributors.

About Browser Hijackers

Browser hijacking is regarded as the internet’s constant risk that targets web browsers. It’s a type of malicious software that modifies your internet browser’s settings so that you are redirected to websites or pages that you had no intention of checking out. They are made to interfere with browser programs for many different reasons. These are typically used to force visitors to a specific website, manipulating web traffic to generate ad revenue. Most people assume that the browser hijacker is just a harmless website but that is not the case. Nearly all browser hijackers pose an actual threat to your online safety and it is necessary to classify them under privacy dangers. In a much worst case, your browser can be hijacked to download malicious software that will do a great deal of damage to your PC.

Key signs that your web browser has been hijacked

The typical signs that signify having this malicious software on your computer are: 1. your web browser’s home page is suddenly different 2. you get re-directed to internet sites you never intended to visit 3. The default search page of the browser is modified 4. you see multiple toolbars on the web browser 5. you might notice many pop-up ads on your screen 6. web pages load slowly and sometimes incomplete 7. you cannot go to specific sites such as home pages of security software.

So how does a browser hijacker infect a PC

There are many ways your computer could become infected with a browser hijacker. They typically arrive by way of spam email, via file-sharing websites, or by a drive-by download. They may also be deployed through the installation of a web browser toolbar, add-on, or extension. Some internet browser hijackers spread in user’s computers by using a deceptive software distribution method known as “bundling” (often through freeware and shareware). Well-known examples of browser hijackers include Conduit, CoolWebSearch, Coupon Server, OneWebSearch, RocketTab, Searchult.com, Snap.do, and Delta Search. Browser hijackers might record user keystrokes to collect potentially valuable information leading to privacy concerns, cause instability on systems, drastically disrupt the user experience, and finally slow down the computer to a point where it becomes unusable.

Browser hijacker removal methods

One thing you can try to eliminate a browser hijacker is to locate the malware within the “Add or Remove Programs” list of the Windows Control Panel. It might or might not be there. When it is, try to uninstall it. But, the majority of hijackers are really tenacious and require specialized tools to get rid of them. Inexperienced PC users should never attempt the manual form of removal, as it demands detailed system knowledge to carry out repairs on the computer registry and HOSTS file.

What To Do If You Cannot Install Any Anti-virus?

Every malware is detrimental and the effects of the damage will vary based on the specific kind of malware. Some malware is meant to restrict or prevent things that you wish to do on your computer system. It may well not permit you to download anything from the internet or it will prevent you from accessing a few or all websites, especially the anti-virus sites. So what should you do if malware keeps you from downloading or installing Anti-Malware? Refer to the instructions below to eliminate malware through alternate methods.

Use Safe Mode to resolve the issue

If the malware is set to run at Windows start-up, then booting in Safe Mode should avoid it. Only the bare minimum required applications and services are loaded when you boot your computer or laptop into Safe Mode. Listed below are the steps you need to follow to eliminate viruses in Safemode. 1) At power on, hit the F8 key before the Windows splash screen begins to load. This will bring up the Advanced Boot Options menu. 2) Select Safe Mode with Networking with arrow keys and press ENTER. 3) As soon as this mode loads, you will have an internet connection. Now, get the malware removal software you want by utilizing the browser. To install the application, follow the guidelines in the installation wizard. 4) As soon as the software is installed, allow the scan run to eliminate viruses and other threats automatically.

Switch over to some other web browser

Certain viruses might target vulnerabilities of a particular browser that block the downloading process. When you suspect that your Internet Explorer happens to be hijacked by malware or otherwise compromised by online hackers, the ideal plan of action is to switch over to a different web browser such as Firefox, Chrome, or Safari to download your favorite computer security application – Safebytes Anti-Malware.

Run anti-malware from a pen drive

Another approach is to download and transfer an antivirus program from a clean PC to run a virus scan on the infected system. Follow these steps to employ a flash drive to fix your infected system. 1) Make use of another virus-free computer system to download Safebytes Anti-Malware. 2) Insert the pen drive onto the same computer. 3) Run the setup program by double-clicking the executable file of the downloaded software, with a .exe file format. 4) Select the USB flash drive as the destination for saving the file. Follow activation instructions. 5) Now, transfer the flash drive to the infected computer. 6) Double click the Safebytes Anti-malware icon on the pen drive to run the software. 7) Hit the “Scan” button to run a full computer scan and remove viruses automatically.

Let's Talk About SafeBytes Security Suite!

These days, anti-malware software can protect your laptop or computer from various forms of online threats. But wait, how to select the right one amongst several malware protection software that’s available in the market? Perhaps you might be aware, there are many anti-malware companies and tools for you to consider. Some are really worth your money, but many aren’t. When looking for anti-malware software, purchase one which gives solid, efficient, and complete protection against all known computer viruses and malware. One of the recommended software programs is SafeBytes AntiMalware. SafeBytes carries a really good reputation for top-quality service, and clients seem to be very happy with it. SafeBytes anti-malware is a highly effective and user-friendly protection tool that is designed for end-users of all levels of computer literacy. This application could easily detect, remove, and protect your personal computer from the most advanced malware attacks including spyware, adware, trojan horses, ransomware, PUPs, worms, parasites as well as other possibly damaging software programs. There are numerous amazing features you’ll get with this particular security product. Listed below are a few of the great ones: Real-time Protection: SafeBytes gives you round-the-clock protection for your computer limiting malware intrusions in real-time. It’ll continuously monitor your laptop or computer for hacker activity and also gives end-users sophisticated firewall protection. Antimalware Protection: Built upon a greatly acclaimed antivirus engine, this malware removal application is able to find and remove several obstinate malware threats such as browser hijackers, PUPs, and ransomware that other common anti-virus applications will miss. Web protection: SafeBytes checks and gives a unique safety ranking to every site you visit and block access to webpages considered to be phishing sites, thus protecting you from identity theft, or known to contain malicious software. Light-weight: This application is not “heavy” on the computer’s resources, so you’ll not find any performance problems when SafeBytes is working in the background. 24/7 On-line Tech Support: Support service is accessible 24 x 7 x 365 days via email and chats to answer your questions.

Technical Details and Manual Removal (Advanced Users)

If you wish to manually remove RadioRage without the use of an automated tool, it may be possible to do so by removing the program from the Windows Add/Remove Programs menu, or in cases of browser extensions, going to the browsers AddOn/Extension manager and removing it. You will likely also want to reset your browser. To ensure the complete removal, manually check your hard drive and registry for all of the following and remove or reset the values accordingly. Please note that this is for advanced users only and may be difficult, with incorrect file removal causing additional PC errors. In addition, some malware is capable of replicating or preventing deletion. Doing this in Safe Mode is advised.

The following files, folders, and registry entries are created or modified by RadioRage

As you probably know, Windows 10 does not offer lots of choices for its Regional settings depending on where you are and what locale you work with or belong to. The standard region settings for Windows 10 allow users to select one set of formats for the calendar and more. However, this has somewhat changed in the Windows 10 v1809. If you don’t want such a change, you can just override the default regional format settings in the Windows 10 Improved local experience. So in this post, you will be guided on how you can do such a thing. Follow the given instructions below to override the default Regional Format settings in Windows 10. Step 1: Go to Settings > Time and Language > Region. Step 2: From there, the default region is what Windows and apps might use to provide you with local content. However, this won’t be much of use if you work for a different locale and need to have different format settings like Calendar, Dates, Times, Currency, and First day of the week, all of which you can modify under the Regional format. Step 3: You need not reboot your Windows 10 computer after changing. On the other hand, some of the apps will have to close and launch again in order to apply the new format. Thus, if you need to use apps that are of different locales, you will only see the changes after you re-launch the app. Note: You can also select a different language that makes more sense to you. In other words, if you prefer more common words to standard words for your Windows 10 computer, then this is definitely the way to do it. This local format will be used for messages, menus, navigation, settings, and other topics. Step 4: Look for a link that says “Add a Windows display language with local experience packs” under Languages. In case you don’t know, Local Experience Packs are Microsoft Store apps that deliver Windows display language quality improvements. So once you click the link, it will download the packs from the Microsoft Store. In addition, Windows has already begun using AI or Artificial Intelligence as well as neural network-based Machine Learning for Windows localization. And as the number increase, the Machine language improvements and feedback from users will help in making the translations a lot better and make them available to even more languages. All in all, it’s pretty much an interesting and a good move for Microsoft as the demands for topics and machines to be available in local languages have been increasing for the past couple of years.

Microsoft has started to use group along with every open window in the Taskbar ever since the release of Windows 10. Early on, they used to show an individual entry for each one of the windows after grouping them which makes the taskbar look cleaner and organized. However, the main issue lies in the fact that you have to hover on your desired window to get on to them. At the time of writing, you need to tap the Ctrl key and click on the taskbar icon to open the last active window but you have to only click on the program’s taskbar icon after you apply the tweak given in this post for the last active window to open. Take note that the “Last Active” windows feature will only work if the taskbar buttons are combined. Before you get started doing the instructions given below, you need to create a System Restore Point first since you will be dealing with registry files and modifying some of the critical settings in Windows 10. Once you’ve done this, proceed to the given steps below. Step 1: Tap the Win + R keys to open the Run dialog box and then type “Regedit” in the field and hit Enter to open the Registry Editor. Step 2: If a User Account Control or UAC prompt appears, just click on Yes to proceed to open the Registry Editor. Step 3: Next, navigate to the following registry path:

HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionExplorerAdvanced

Step 4: From there, right-click on the right side of the panel and select New > DWORD (32-bit) and then name it “LastActiveClick”. Step 5: After that, double click on the newly created DWORd to modify its value. Put “1” as its value data. Step 6: Then click OK and close the Registry Editor. Step 7: Now restart your computer to successfully apply the changes made. Note: In case you want to revert back to the default configuration, all you have to do is set the value data of LastActiveClick to “0” or simply delete that DWORD and restart your computer to successfully apply the changes made.

If you have encountered the NO_USER_MODE_CONTEXT Blue Screen error when using your computer, read on as this post will walk you through a couple of suggestions you can try to resolve this Stop error. This kind of Blue Screen error can occur when a program is trying to leverage the use of a system driver but fails to do so. Some of the common causes of this BSOD error are incompatible or corrupted drivers, incorrect configuration of entries in the Registry, damaged memory locations, malware infection, and many more. In addition, this Stop error does not often occur and indicates that an attempt to enter user mode with no context was made. If this is the first time you’ve restarted your computer after you’ve installed additional hardware, you have to remove the hardware and then restart your computer once again and then check the Microsoft Hardware Compatibility List to confirm that the hardware and its drivers are compatible with your operating system. If it doesn’t help, you can check out the given suggestions below to fix the NO_USER_MODE_CONTEXT Blue Screen error in Windows 10.

Option 1 – Try to update or rollback your device drivers

The first thing you can try to fix the NO_USER_MODE_CONTEXT Blue Screen error is to either update or roll back the device drivers. It is most likely that after you updated your Windows computer that your driver also needs a refresh. On the other hand, if you have just updated your device drivers then you need to roll back the drivers to their previous versions. Whichever applies to you, refer to the steps below.

• Open the Devices Manager from the Win X Menu.
• Then locate the device drivers and right-click on them to open the Properties. Note that the main drivers that might be the cause behind the NO_USER_MODE_CONTEXT Blue Screen error will be listed under the “ID ATA/ATAPI controllers” section as well as the “Storage controllers” section.
• After that, switch to the Driver tab and click on the Uninstall Device button.
• Follow the screen option to completely uninstall it.
• Finally, restart your computer. It will just reinstall the device drivers automatically.

Note: You can also directly download the relevant drivers of your computer from the manufacturers’ website. So if you have an SSD, the issue might be due to an old storage driver.

Option 2 – Try running System File Checker or SFC scan

System File Checker or SFC is a built-in command utility that helps in restoring corrupted files as well as missing files. It replaces bad and corrupted system files to good system files. To run the SFC command, follow the steps given below.

• 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.

 Reboot your PC.

Option 3 – Try running the Memory Diagnostic Tool

The Memory Diagnostic tool in windows can help resolve the NO_USER_MODE_CONTEXT Blue Screen error by checking and automatically fixing any memory-based issues. To run it, refer to these steps:

• Tap the Win + R keys to open Run and type exe and hit Enter to open the Windows Memory Diagnostic Tool.
• After that, it will give two options such as:
  • Restart now and check for problems (Recommended)
  • Check for problems the next time I start my computer
• Once your computer has restarted, perform a basic scan or you could also go for the “Advanced” options such as “Test mix” or “Pass count”. Simply tap the F10 key to start the test.

Note: After you select your preferred option, your computer will restart and check for memory-based issues. If it finds any issues, it will automatically fix them.

Option 4 – Perform System Restore

• First, tap the Win + R keys to open the Run dialog box.
• After that, type in “sysdm.cpl” in the field and tap Enter.
• Next, go to the System Protection tab then click the System Restore button. This will open a new window where you have to select your preferred System Restore point.
• After that, follow the on-screen instructions to finish the process and then restart your computer and check if the problem is fixed or not.

Option 5 – Run the Blue Screen Troubleshooter

Troubleshooting Blue Screen of Death errors wouldn’t be complete without the Blue Screen troubleshooter. As you know, it is a built-in tool in Windows 10 that helps users in fixing BSOD errors like NO_USER_MODE_CONTEXT. It can be found on 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.