A Windows 11 update may leave some PCs stuck on a black screen
Microsoft says a recent Windows 11 update may cause some computers to show a black screen after sign-in or take a long time to fully load. The issue is tied to certain late-August 2026 preview and later update releases, and Microsoft is working on a permanent fix.
Who is at risk
People and organizations using Windows 11 devices that recently installed late-August 2026 preview updates or newer related updates are most at risk.
What to watch for
Watch for your computer showing a black screen after you log in, a missing desktop, or apps and icons failing to appear normally.
What to do
If your Windows 11 device updated recently, avoid installing optional updates for now, save your work often, and check Microsoft’s Windows update page for guidance or a fix before updating again.