Microsoft confirms Windows 10 crash issue due to March updates
18 mars, 2021 par
Microsoft confirms Windows 10 crash issue due to March updates
Net Computer Group SA, D’hondt Nicolas

Update: Microsoft has released out-of-band non-security updates to address the Windows 10 printing crash issue.

Microsoft has confirmed that Windows 10 devices might crash with a Blue Screen of Death (BSOD) when printing under certain conditions after applying the March cumulative updates.

Affected platforms include both client and server Windows versions:

  • Client: Windows 10, version 20H2; Windows 10, version 2004; Windows 10, version 1909; Windows 10, version 1809; Windows 10 Enterprise LTSC 2019; Windows 10, version 1803
  • Server: Windows Server, version 20H2; Windows Server, version 2004; Windows Server, version 1909; Windows Server, version 1809; Windows Server 2019; Windows Server, version 1803

The cumulative updates causing Windows 10 blue screens when printing are:

  • KB5000802: Windows 10 2004/20H2 & Windows Server 2004/20H2
  • KB5000808: Windows 10 1909 & Windows Server 1909
  • KB5000822: Windows 10 1809 & Windows Server 2019
  • KB5000809: Windows 10 1803 & Windows Server 1803

As BleepingComputer reported Wednesday, we have seen a stream of user reports around printing causing Windows 10 to crash with "APC_INDEX_MISMATCH for win32kfull.sys" BSOD errors since the cumulative updates were released as part of the March 2021 Patch Tuesday.

Example APC_INDEX_MISMATCH blue screen crash
Example APC_INDEX_MISMATCH blue screen crash

While Microsoft didn't provide additional details, the blue screen issues are most likely related to the CVE-2021-1640 and CVE-2021-26878 security updates that fixed two Windows Print Spooler elevation of privilege vulnerabilities. 

Some of the printer brands known to be impacted by this known issue include Kyocera, Ricoh, and Dymo.

Microsoft is currently investigating the newly acknowledged issue and will provide an update after more information is available.

How to fix the BSOD crashes when printing

Even though Microsoft did not provide a workaround for Windows 10 devices affected by this issue, you can temporarily restore printing functionality by uninstalling the problematic cumulative update.

You can uninstall the buggy updates by closing all applications, opening a Command Prompt, and entering the following command (replace the KB ID to match the cumulative update you want to remove):

wusa /uninstall /kb:5000802

We also have this detailed tutorial for more help uninstalling Windows updates using the Control Panel or the Advanced Options feature.

A similar issue affected Windows 10 devices during the June 2020 Patch Tuesday updates when a bug prevented users from printing.

To resolve the printing issues, Microsoft released out-of-band updates for all impacted Windows users.

Update: Included info on all cumulative updates causing BSOD issues.

Related Articles:

Windows 10 crashes when printing due to Microsoft March updates

Windows 10 emergency updates released to fix printing crashes

Microsoft shares temporary fix for Windows 10 printing crashes

Intel wireless driver updates fix Windows 10 blue screen issues

Microsoft warns of more printing issues caused by March updates

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