While BSODs aren't necessarily common nowadays, or at least, less common as these were in the Windows XP era, they still happen.

And many recently, the latest cumulative update released by Microsoft for Windows 11 devices caused such trouble, apparent because of bad drivers.

Security company Sophos says some of the affected drivers were used by antivirus software, and this is why some devices running its products will finish up hitting a BSOD.

Quite simply, it's the fault of the antivirus solution that the system crashes, because the culprit is the latest cumulative update that broke down the drivers.

Full fix available these days

Sophos, however, has additionally released a fix after previously providing users with two different workarounds.

"Customers on Windows 11 running Sophos Home may encounter a BSOD/Stop error after installing Windows Update KB5013943 and restarting their machines. The symptoms involve not being able to arrive at the desktop after restarting the computer/shutting down powering it back on post installation of Windows Update KB5013943. Including an end Error Index Mismatch message (Blue screen of death)," Sophos says.

The 2 workarounds dropped to either the entire removal of Windows 11 cumulative update KB5013943 or the renaming from the hmpalert.sys driver on your Windows 11 device.

The fix the organization has released updates this driver, and also you must be running version 3.8.4.46 to be certain your device isn't impacted by the buggy update.

Sophos has also provided the next instructions to ensure that you received the fix:

1 - Users will get a Restart Required message in Sophos Home when the automatic fix is installed 2 - Keep the windows open Explorer and navigate to C:\Windows\System32\drivers 3 - Locate hmpalert.sys > Right-click > Properties> Details 4 - Confirm the Product version is 3.8.4.46

At this time, Microsoft is yet to acknowledge the motive force problem brought on by its latest cumulative updates.