The Windows 11 22H2 KB5027231 cumulative update, released during Patch Tuesday, is causing compatibility issues with Google Chrome on systems protected by Cisco and WatchGuard EDR and antivirus solutions.
Windows admins and users have reported difficulties launching the web browser after installing the update. Uninstalling the update is not straightforward, with admins encountering a “catastrophic error” when attempting to rollback via WSUS.
Malwarebytes has confirmed the problem, recommending users to disable Chrome as a protected app. WatchGuard and Cisco Secure Endpoint users have also experienced Chrome launch issues, with the exploit prevention engine blocking the browser.
Workarounds include disabling anti-exploit protection or setting Chrome as the default browser. Microsoft and Cisco have yet to provide further details on the matter.
