Recent update causing USB mouse/keyboards to stop working

A recent update (we think KB4074588) has started causing major issues with USB keyboard/mice attached to systems. We have a number of X1Cs and SP4s that recently received this update and are now not able to use USB KBs/mice; the system devices work fine. If we restore the system state we get a BSOD unless the "Disable Driver Signing" option is enabled.

This isn't affecting all PCs with this update, but is raising some concerns on whether there is a bug in the patch. Has anyone else noticed this issue?

Thanks!

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Answer
Answer

Update: After another machine's USB keyboard/mouse stopped working I uninstalled KB4074588, rebooted, and the system was working normally. 

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Last updated May 10, 2021 Views 5,766 Applies to: