After Windows 11 January 2026 update, we're seeing reports of other issues, including a sleep problem (S3), and more.
Windows 11 KB5074109 breaks S3 Sleep mode on some PCs, causing blank screens, freezes, and adding to ongoing update issues.
Microsoft might have fixed that bug with shutdowns, but its latest Windows 11 update means sleep mode now locks up some PCs.
Microsoft has now admitted that the January security updates for Windows 11 23H2 can interfere with sleep mode and shutdown.