Find notable cyber news and cases, enriched with sources, timelines, and signals.

Microsoft Windows Update installation failures on upgraded Windows 11 PCs

Service Disruption
First reported
Last updated
Happening score
H score 1
1 unique sources, 1 articles

Summary

Hide ▲

Microsoft Windows Update is failing on a small percentage of upgraded Windows 11 PCs, blocking June 2026 cumulative updates and producing 0x80073712 or 0x800f0993 errors. The affected cohort includes devices that started on Windows 10 21H2/22H2 or Windows 11 23H2 and were later upgraded to Windows 11 24H2 or 25H2. Microsoft says a fix will reach unmanaged enterprise devices and Home PCs after a restart, while already-affected systems may need package removal or an in-place upgrade. The disruption matters because impacted devices cannot install monthly Windows updates until the issue is cleared.

Related Happenings

Microsoft Windows 11 update rollout blocked on Dell devices over driver incompatibility

Service Disruption
H score1 First: 15.07.2026 11:26 Last: 15.07.2026 11:26 Sources 1

About this happening: Microsoft is blocking KB5101650 on some Dell devices after a driver incompatibility caused unexpected shutdowns and other stability problems. The hold affects Window...

Microsoft Windows 10 KB5099539 extended security update

Security Patch Release
H score16 First: 14.07.2026 21:49 Last: 14.07.2026 21:49 Sources 1

About this happening: Microsoft released Windows 10 KB5099539, a security update bundle for Windows 10 ESU that rolls in July 2026 Patch Tuesday fixes for 570 vulnerabilities. The p...

Windows 11 KB5101650 and KB5099414 cumulative updates

Security Patch Release
H score27 First: 14.07.2026 20:41 Last: 14.07.2026 20:41 Sources 1

About this happening: Microsoft released Windows 11 KB5101650 and KB5099414 cumulative updates for 25H2/24H2 and 23H2, delivering the July 2026 Patch Tuesday fixes for 571 vul...

Microsoft extends Windows 10 ESU consumer coverage through October 2027

Security Tool/Service
H score11 First: 25.06.2026 21:29 Last: 25.06.2026 21:29 Sources 1

About this happening: Microsoft quietly extended the Windows 10 Extended Security Updates (ESU) program for personal devices by one additional year, keeping critical security update cov...

Microsoft Windows Server 2016 KB5094122 installation failures resolved

Service Disruption
H score1 First: 18.06.2026 13:14 Last: 18.06.2026 13:14 Sources 1

About this happening: Microsoft resolved a Windows Server 2016 update-installation failure that blocked June 2026 security updates on some unpatched servers. Affected devices could hit 0x8007...

Timeline

  1. 10.06.2026 14:33 2 articles · 1mo ago

    Initial report: Microsoft Windows Update installation failures on upgraded Windows 11 PCs

    Initial Disclosure

    Microsoft identified a Windows Update installation failure affecting a subset of devices upgraded to Windows 11 24H2 or 25H2. The issue blocks June 2026 cumulative updates and generates 0x80073712 or 0x800f0993 errors.

    Show sources