GoKawiilMicrosoft confirms black-screen bug in Windows updates tied to FSLogix desktops
Microsoft has acknowledged that recent Windows updates, including August 2026 preview builds and this month's Patch Tuesday releases (KB5120996, KB5120998, KB5124008, KB5122880), can cause black screens after sign-in and Windows Explorer crashes. The issue mainly affects Azure Virtual Desktop hosts using FSLogix profile software. Microsoft has issued a Known Issue Rollback fix for enterprise admins and suggests manually relaunching explorer.exe as a temporary workaround for individual users.
GoKawiil's interpretation of the reporting above, not reported fact.
The bug highlights the recurring fragility of Windows update rollouts, especially for enterprise virtual desktop environments that many organizations depend on for remote work. Because a full fix isn't yet available, IT administrators must manually deploy Group Policy rollbacks, adding operational overhead until Microsoft ships a permanent patch.
- Recent Windows updates can cause black screens and Explorer crashes on FSLogix-based virtual desktops.
- Microsoft offers a manual workaround (relaunching explorer.exe) and a Known Issue Rollback for enterprise admins.
- No permanent fix exists yet for KB5120996, KB5120998, KB5124008, or KB5122880.
Source: bleepingcomputer.com, 2026-09-25
Published there as: “Microsoft: Recent Windows updates cause desktop loading issues”
Read the original report → The summary and analysis above are GoKawiil's own, written from reporting by the source above. Facts and quotes belong to the original publisher.