this post was submitted on 03 May 2026
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36
Microsoft Update Warning—Windows 11 Security Fix Breaks Backups (www.forbes.com)
submitted 16 hours ago by sanitation@lemmy.radio to c/technology@lemmy.world
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[–] halcyoncmdr@piefed.social 9 points 11 hours ago

Yeah the real question is why the backup software companies are choosing to use a known vulnerable kernel driver.

The quote from the article:

I reached out to Microsoft for a statement and a spokesperson proviued the following: “In the April 2026 Windows security update, we added known vulnerable kernel driver psmounterex.sys to the Vulnerable Driver Blocklist. Backup applications that rely on this driver may experience failures when attempting to mount or manage disk images. We do not recommend uninstalling or pausing this update. Customers with an impacted driver should install the latest application versions and validate against the driver blocklist to remain protected. For more information, please see here.”