Windows 11 25H2 (Build 26200.8116)

ProductWindows 11 Version25H2 Release dateMar 26, 2026 File size

Evidence summary: Negative 1 user report found

Community consensus not established — 1 user report, evidence strength Low. This is a verified report sample, not live consensus telemetry.

Last evidence checked: Sep 5, 2026

AUXSAYS verdict WAIT

Current reports mention update/install failure. This page covers one cumulative update, not the whole 25H2 servicing train; reports about a later update are counted on that update's own page.

Recommendations

Pause updates if this machine is doing deadline-sensitive or production work.
Check Microsoft's known-issue and safeguard-hold list for this KB before installing.
Keep the uninstall path in mind: a cumulative update can be removed from Settings > Windows Update > Update history for a limited window after installation.

Current reports mention update/install failure in windows update.

Too few reports for a firm verdict yet — treat this as early evidence.

Accepted reports: 1
Latest evidence run: Oct 6, 2026
Healthy sources: 2 fresh (success / no reports) · need 2

Microsoft Q&A (search) Checked — no reports found last checked Oct 6, 2026
techcommunity windows sitemap Checked — no reports found last checked Oct 6, 2026

Monitoring reflects community-evidence collection health for this exact release — an absence of reports is not a safety guarantee, and this is separate from the AUXSAYS verdict.

Vendor Known Issues — No vendor-known issue data captured for this patch.

AUXSAYS has not captured official issue data for this patch. This does not indicate the vendor has no issues. Not counted as community reports.

Official Patch Notes — vendor release notes captured from the official source

Windows 11 25H2 cumulative update, OS build 26200.8116 (KB5079391). Released 2026-03-26 on the General Availability Channel. Update type 2026-03 D. This is the official Microsoft Windows release-health entry (learn.microsoft.com/windows/release-health). Known-issue and safeguard-hold details are published on the per-version Windows release-health status page.

Windows 11 in these notes: .

Technical Details

Released: Mar 26, 2026
File size
Official source checked: Oct 6, 2026
Official notes checked: Oct 6, 2026

Checksum

Use these hashes to verify downloaded installers match the files published with the official release.

User Reports / Sources (1)

User report sources used for the current read.

Microsoft Learn Q&A. (2026, March 28). I haven't received KB5079391 update. What happened? - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update

Official sources

Microsoft. (2026, March 26). Windows 11 release information.release health
Microsoft. (2026, March 26). Windows release health.release health
Microsoft. Download page.download