The latest Windows 10 update is causing some printers to fail PCs

Illustration for the article titled The Latest Windows 10 Update Is Causing Some Printers To Fail On PCs

Screenshot: MitrandirLK / Wikipedia (Other)

The latest Windows 10 update not playing nice with some printers.

According to Latest Windows, the problem affects Kyocera, Ricoh and Zebra printers. When a user submits a file to print, instead of printing it, the entire PC will crash, displaying the dreaded Blue Screen of Death along with the error code “APC_INDEX_MISMATCH for win32kfull.sys”.

This type of message usually appears when there are incompatible hardware or drivers, and in this case it is the latter. The KB5000802 update is making Windows 10 think that those printer drivers are not installed or linked to the actual devices. Therefore, if someone tries to print from Word, Notepad, or another program, the PC immediately crashes and crashes.

The issue has been affecting multiple versions of Windows 10, both client-side and server-side, including: Windows 10 version 20H2, 2004, 1909, 1809, 1803, and Windows 10 Enterprise LTSC 2019 and Windows Server 2019.

Microsoft is aware of the problem, but has not provided a permanent solution at this time, as the company became aware of the problem recently.

“We are currently investigating and will provide an update when more information becomes available,” the company said in its Support page.

A Microsoft employee posted a workaround in the sysadmin subreddit, which involves enabling direct printing and applying a fix with the Application Compatibility Toolkit.

Another option is to completely roll back the Windows 10 March 2021 update, but doing so could also put your PC’s security at risk, because cumulative update KB5000802 came with some security fixes. However, a Reddit user pointed out that KB5000802 appears to have been removed. I checked this on my own PC and that seems to be the case, but the cumulative update KB5000808 is still available for Windows 10 version 1909, which can also cause similar problems with the same brands of printers.

If you want to uninstall any of these updates, type windows update in the search bar, click View update history, and later Uninstall updates on top. A new window will appear and you should see the update listed as Security Update for Microsoft Windows KB5000802 or KB5000808.


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