HMPA - Windows 11 BSOD - after install of KB5013943 (May 10th 2022)

Gandalf_The_Grey

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Apr 24, 2016
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My Windows 11 machine starts to BSOD at boot, either intermittent or stuck in a boot loop after the install of Microsoft update KB5013943 released on May 10th 2022.

What to do

Option 1

Let the system BSOD and auto restart
After 3 times, you are presented with Advanced repair options button
Select Advanced repair options to enter winRE
Select Troubleshoot > Advanced options > Command Prompt
Type cd \windows\system32\drivers
Hit Enter
Type ren hmpalert.sys hmpalert.old
Hit enter
Type Exit
The system should boot normally after renaming the hmpalert.sys driver

Option 2
Let the system BSOD and auto restart
After 3 times, you are presented with Advanced repair options button
Select Advanced repair options
Select Troubleshoot > Advanced options > Uninstall Updates
Choose Uninstall latest feature update (KB5013943)

FAQ
Looks like this Windows Update is causing multivendor BSOD's so we expect a "fix" from their end somewhere soon-is, in the mean time we're working on a workaround for Win11 users with this patch.