Microsoft Releases Emergency Fix for Windows 10 Cumulative Update BSOD

The update is offered as optional via Windows Update

Microsoft has released a new cumulative update for Windows 10 devices in order to resolve a printing bug that was introduced by the March 2021 Patch Tuesday rollout.

The out-of-band update is KB5001567 for Windows 10 version 2004 and 20H2, and it includes a fix for a bug that “might cause a blue screen when you attempt to print to certain printers using some apps.”

The March 2021 update cycle included new cumulative updates for all Windows 10 devices, but as Microsoft itself acknowledged shortly after the release, they also came with a bug that caused some computers to encounter a fatal crash when trying to print.

“After installing this update, you might receive an APC_INDEX_MISMATCH error with a blue screen when attempting to print to certain printers in some apps,” Microsoft said.

Not pushed automatically via Windows Update

The new fix that’s now available for download isn’t pushed as an automatic update to Windows 10 devices out there, but needs to be manually downloaded from Windows Update.

So what you need to do is to head over to Windows Update and look in the optional updates screen, where you should see the new cumulative update. Simply downloading and installing it on your computer should apply the fix, with the BSODs to no longer occur when trying to print.

The update is also available on the Microsoft Update Catalog for manual downloads, though it’s not shipped via WSUS.

Microsoft will also include the fix in the next round of cumulative updates going live to production devices as part of the April 2021 Patch Tuesday cycle, so everybody will get it automatically in approximately one month.

A preview of the April 2021 Patch Tuesday rollout would be offered with new cumulative updates later this month.