The win32kfull.sys is a blue screen error and mostly occurs when you upgrade your Windows 10 OS to the next available Build version. If that’s the case, you may resolve this simply by uninstalling the update that might have started this bug. In case you haven’t installed any security/non-security patch recently on your computer, the problem must be due to system-level corruption. Anyways, we have come up with 10 solutions that should fix this problem on your behalf.
This error is usually associated with an additional issue on the computer. So, if you have come across either of the following, you may encounter win32kfull.sys as well –
- APC_INDEX_MISMATCH
- Stop Error: 0x0000001E, 0x0000000A
The system-level corruption includes either one or more of these possibilities – Obsolete device drivers, damaged system files, or the presence of malware. A corrupted RAM or HDD may also result in similar errors. Whatever is the cause behind this trouble on your computer, you can fix this by applying the fixes discussed in this tutorial.
Ways to Fix win32kfull.sys BSOD Error
If you are getting win32kfull.sys blue screen error in Windows 10, boot into the Safe Mode first then try out the below suggestions sequentially –
1] Uninstall lately installed applications or Cumulative update
If the win32kfull.sys error starts occurring after a recent Windows 10 update, you might have installed a corrupt update. In order to fix it, you must uninstall the latest update on your device.
Similarly, if you have installed any new applications, drivers, or services, make sure to undo this action of yours. The best way to know about corrupted software is by booting Windows 10 into the Safe Mode.
If you don’t get the blue screen error while inside the Clean boot state, this indicates one of your apps must have gone corrupt. This is because all third-party apps and services don’t start inside the Clean boot state. However, if the error persists here as well, try our next set of solutions discussed below –
2] Download and Install Optional Updates
When such an error arises after installing any pending updates, the problem was within the installed update. As soon as Microsoft knew of any new bugs or errors, they provide a new update for such users and call it “Out-of-band updates“. Here’s how to download and install the optional update in Windows 10 –
- First of all, navigate to – Settings > Update & Security > Windows Update.
- Move to the right side and click the “optional updates” link.
- Next, choose to download and install the updates available there.
In case you don’t get the “optional updates” link, visit Microsoft Update Catalog, and search for out-of-band updates.
3] Run Blue Screen troubleshooter
This is by far the best tool to find and fix the reasons that may have caused any blue screen error in Windows 10. Here’s how to use this tool –
- Press Win + I to open the Settings app.
- Select Update & Security > Troubleshoot.
- Head over to the right side and click the “Additional troubleshooters” link.
- On the next screen, click to expand the Blue Screen section, and hit Run the troubleshooter.
- This tool may take a few minutes to find and resolve the reasons behind it, so wait accordingly.
- After the blue screen issue gets resolved, restart your PC.
4] Fix win32kfull.sys by updating obsolete drivers
If the win32kfull.sys error occurs again, you should update all the device drivers that are obsolete or somehow corrupted. To do so, use these steps –
- Press WinKey + X to launch the Power Menu and select Device Manager.
- When Device Manager opens up, expand each one of the available driver sections, and locate the corrupt one. A corrupt driver usually has a yellow exclamation mark next to it.
- Put a right-click on the problematic driver, and choose the uninstall device option. When the driver gets uninstalled successfully, reboot Windows 10.
Note: In case you don’t find such a driver, skip this method and proceed to the next one.
- From the next logon, you must be able to sign-in to Windows 10 without getting into any blue screen issue.
5] Perform SFC Scan to fix win32kfull.sys
The win32kfull.sys may also occur due to the presence of corrupted or missing system files. You may fix this simply by performing an sfc scan on your device. Here’s how to proceed –
- Launch Command Prompt having administrative privileges.
- Type
sfc/scannowand hit Enter.
- The system file checker will run for at least 15-20 minutes in order to find and repair the damaged system files.
6] Check RAM issues on the computer
A compromised RAM may also trigger different blue screen errors including win32kfull.sys. So, it is better to check if there are any memory-related issues on your device or not. To find this, diagnose the installed memory using the below steps –
- Hit the search icon on the taskbar and type “memory”.
- Double-click the top result i.e. Windows Memory Diagnostic.
- Choose the first option i.e. “Restart now and check for problems (recommended)“.
The memory test will look at memory failure on your computer and report the findings. If the test-result says your memory is corrupted, simply replace it with a new memory.
7] Run CHKDSK to fix win32kfull.sys
Hardware problems on PC tend to cause different issues on Windows 10. So, it is better to check if there is any problem with the existing HDD or not. Here’s how to test the hard disk for probable corruption –
- Press Win + R to launch the Run dialog.
- Type “cmd” in the text field, and press Ctrl + Shift + Enter keys altogether.
- Doing so will invoke the Command Prompt having Admin rights.
- On the elevated console, copy/paste the code below and press Enter.
chkdsk C: /f /r /x
- The scanning will not start immediately afterward. Rather, you will receive a message that says “Chkdsk cannot run because the volume is in use by another process”.
- However, as this suggests to schedule the hardware test the next time the system restarts, type “Y“, and press Enter again.
- Restart Windows 10 so that the scanning starts.
- When this tool finishes checking corruption on your computer, this will provide a report wherein you can find if you need to replace your HDD or not.
8] Do a Full Scan using Windows Defender
The presence of viruses or malware may also result in blue screen error win32kfull.sys on the computer. To check if this indeed is the case or not, go and perform a full scan of your device using Windows Defender. In case the above scan reports any viruses, make sure to remove or at least quarantine them.
9] Use System Restore Point
If none of the above solutions is helping to fix the win32kfull.sys BSOD error and you do have created a restore point some time back in the past, revert your operating system to the state when everything was running completely fine.
10] Clean Install Windows 10
In case you don’t have created any restore point, you may go for the option – Clean install Windows 10. Make sure to check the “Keep personal files” box while reinstalling Windows 10 on your computer.
I hope this article was easy to follow and you do have fixed the win32kfull.sys blue screen error on your device. Kindly tell us which of the above solutions help you to fix this issue so that our other users may benefit from it as well.
