Error 0x0000007F is often reported by Windows users which causes BSOD. This particular error often triggers randomly without any apparent cause. Here we will discuss all of the fixes for Error 0x0000007F.
How To Fix 0x0000007F
As I mentioned earlier, this error triggers randomly and have various reasons like corrupt OS files, anti-virus blocking kernel processes, and more. The following are the fixes for the BSOD Error 0x0000007F.
The common reason for this Error 0x0000007F followed by a blue screen of death is the lopping iaStor.sys file. The reason behind this are the IDE, ATA, or ATAPI controllers. This can be fixed by going to the device manager and uninstall all of the IDE, ATA, or ATAPI drivers and install them again. Here is how to fix Error 0x0000007F.
Press “Windows + R” and type “devmgmt.msc” in the small window that appears and press enter. Device Manager will open and look for “IDE ATA/ATAPI controllers”. Expand it and uninstall all of the drivers from the devices listed under “IDE ATA/ATAPI controllers”. You can do that by simply right-clicking the device and choosing the “Uninstall device”. After that, restart your PC and the OS will automatically install generic IDE ATA/ATAPI drivers and the error will be fixed.
In case the above fix didn’t work for you, chances are your anti-virus might be causing this error and then crashing it with a blue screen of death. The anti-virus might be blocking important kernel processes and causing the system to crash. McAfee Internet Security is known to be the cause of this error and users can fix this by either uninstalling the anti-virus or disabling real-time protection. Simply disabling the real-time protection should fix the Error 0x0000007F. If not, then uninstall the anti-virus.
If Windows users are using either of the Symantec or Norton anti-virus, then these might be the reason why the Error 0x0000007F is bothering you. In this case, the fix is a simple tweak to the registry and here is how to do it.
Press “Windows + R” and type “regedit” in the small window that appears and press enter. A new window will open and users have to navigate to the following path.
HKEY_LOCAL_MACHINE\SOFTWARE\Symantec\Symantec Endpoint Protection\AV\Storages\Filesystem\RealTimeScan
After selecting RealTimeScan look to the right side of the window. Right-click > New > DWORD value. Name this new file “KStackMinFree” and press enter. Now right-click this newly created file and select “Modify”. Select “Hexadecimal” under ‘Base’ and set Value data to 2200. Press enter to save the changes. Restart your PC and the error 0x0000007F will now be fixed.
In case you are using an HP laptop and have installed HP Credentials Manager or HP Protect Tools Security Manager Suite, then these might be the culprits behind the error and BSOD. Just uninstall these Softwares and the error will be fixed.
If none of the above fixes worked for you then the culprit might be the OS itself or corrupt OS files. This can be fixed by repairing the OS or resetting the OS or reinstalling the operating system.
To repair the OS, users need to a compatible Windows installation media. Start the setup and instead of installing the OS, select to repair it. If the installation media isn’t available then users can reset their OS.
If resetting the OS doesn’t fix the error then do a clean installation of the OS and the Error 0x0000007F will be fixed.
That is all for our guide on how to fix Error 0x0000007F which causes BSOD. If you are facing errors and issues with other PC games or your PC then also see our hub for commonly occurring PC errors and their fixes.