Microsoft Windows Update is wreaking havoc on printers all over the world this week —
KB50000802 (For newer Windows 10 releases; older Windows 10 and Server versions might end in
822 Instead) to provide security updates for “when Windows performs basic operations,” but the update disables some print drivers due to an bypass GDI object A limit of 10,000.
The error affects a wide range of printers and print drivers – we can confirm seeing the problem on our Windows 10 2004 PC, which is crashing with
APC_INDEX_MISMATCH (Image above) after printing to any of several Kyocera printer models (some are local, some are network).
If you’ve been struck by this error yourself, you can get some relief by uninstalling KB50000802 until Microsoft comes out with a stable update, most likely by Tuesday in April.
In Windows 10 or Windows Server PC Version 2004 / 20H2, click Start -> Type “Control Panel” and press Enter -> Go to Programs, then Programs and Features. From there, click on “View installed updates” in the left pane and uninstall
Security Update for Microsoft Windows KB50000802).
On Windows, version 1909 computers, the same fix (and problem) exists in the
KB50000808. If you are using version 1809, search for
KB50000822. For more technical details, Dutch tech website Winking Excellent overview.
This bug may also affect Windows 8.1 or Windows 7 PCs with 848 KBs or 853 or 841 KBs or 851 … but if you are still using Windows 8 or Windows 7 at this point then you will encounter worse problems than that. Please upgrade!