Avast Confirms Issues Caused by Windows Updates KB4493472 and KB4493448
A bug introduced by the latest Windows 7 and 8.1 monthly rollups causes devices running these two Windows versions to freeze at boot.
However, it looks like the problem is only encountered on computers running certain antivirus software, including security products developed by Sophos.
Microsoft acknowledged the issue, but said it’s only experienced with Sophos software. The company blocked the updates from being offered to devices running Sophos antivirus.
“Microsoft and Sophos have identified an issue on devices with Sophos Endpoint Protection installed and managed by either Sophos Central or Sophos Enterprise Console (SEC) that may cause the system to freeze or hang upon restart after installing this update,” the company says.
Nevertheless, similar issues are experienced on devices where other antivirus products are installed… (read more)