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After a recent Microsoft Update Windows 10 is now crashing every time a print action is done. This has been an issue since the 9th March 2021.

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Computer Crashes when Printing March 2021

Windows 10 printing causes computer to crash. Windows 10 Updates KB5000802 and KB5000808 causes blue screen of death (BSOD), win32kfull.sys.


This issue has now been fixed in KB5001649 install this update to resolve the problem. If you have any problems getting the update to install check out this post Windows 10 KB5001649 fails to install with 0x80070541 error (



What failed: win32kfull.sys

On 9th March Microsoft released Windows updates KB5000802 and KB5000808 for Windows 10 1909 – 20H2.This update is causing computers to crash when printing. As soon as you hit print the BSOD comes up with ‘Your device ran into a problem and needs to restart. We’re just collecting some error info, and then we’ll restart for you.’. Along with the stop code: ‘APC INDEX MISMATCH’ and What failed: ‘win32kfull.sys’.  See image below:

Blue Screen Computer Crash showing issue


The fix is to uninstall the offending updates! Simply do the following:

  1. Open Control Panel
  2. Select Programs
  3. Under Programs and Features select View installed updates
  4. Find the update with (KB5000802) or (KB5000808) at the end
  5. Right click on the update and select uninstall (Do this for both updates if you have both!)
  6. Restart the Computer


Until this is resolved I would suggest turning off updates for 7 days. As of this article going live Microsoft have not pulled this update! I am sure Microsoft will be working on an update and get that out as soon as possible.

Extra Information

For an update on this problem go to this link March 9, 2021—KB5000802 (OS Builds 19041.867 and 19042.867) (

The above post states that Microsoft is aware of the issue and is currently investigating.

There are other issues with this update to do with security certificates, Microsoft have posted a work around for this in the above link.