Windows 11

Windows 11 KB5013943 crashes devices with BSOD, antivirus company Sophos warns

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Microsoft recently released a cumulative update to fix some issues and bugs in Windows 11, but it seems that Windows 11 KB5013943 is causing the dreaded Blue Screen of Death (BSOD) on some systems with specific drivers, including those that support antivirus software .

Sophos has confirmed that the Windows 11 KB5013943 patch for the operating system is causing Blue Screen of Death, i.e. stop error codes that cause the desktop to stop responding, due to compatibility issues between drivers and Patch Tuesday of May 2022.

A user who encountered the Blue Screen of Death errors described their problem in the Microsoft Answers forum and Reddit, with one user saying, “Since updating to this build, BSOD got 10-15 minutes playing Hitman 3. The blue screen is literally showing for 1 second so I can’t even see what error is showing”.

Another user added that they were experiencing Blue Screen errors with vague error codes like “APC_INDEX_MISMATCH” on their primary and secondary machines, including the virtual machines.

Affected users have claimed that the BSOD is triggered immediately after their devices are updated to the latest version.

While Microsoft has not yet acknowledged reports of the Blue Screen of Death error affecting Windows 11 machines, Sophos has confirmed that the update may cause your device to become unbootable.

“Customers on Windows 11 with Sophos Home may encounter a BSOD/Stop error after installing Windows Update KB5013943 and restarting their machines,” Sophos noted in a note. their supporting documents

“The symptoms are that you cannot get to the desktop after restarting/shutting down the computer after installing Windows Update KB5013943. This includes a Stop Error Index Mismatch message (blue screen),” the security company noted.

To fix the BSOD errors, Sophos recommends uninstalling the update by following these steps:

  • Pause Windows updates to prevent the update from installing.
  • Select Start > Settings > Windows Update.
  • Pause updates for 7 days.
  • Open Control Panel.
  • Click Programs and Features.
  • Click View installed updates
  • Search for KB5013943 and delete it.

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