Windows 11 25H2 (Build 26200.8246)

ProductWindows 11 Version25H2 Release dateApr 14, 2026 File size

Evidence summary: Negative 21 user reports found

Community consensus not established — 21 user reports, evidence strength Low-Medium. 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, crash or hang, and bsod / stop error. 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, crash or hang in system stability, bsod / stop error in system stability.

Accepted reports: 21
Latest evidence run: Oct 6, 2026
Healthy sources: 2 fresh (success / no reports) · need 2

Microsoft Q&A (search) Completed 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 26200.8246 (KB5083769). Released 2026-04-14 on the General Availability Channel. Update type 2026-04 B. 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: Apr 14, 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 (21)

User report sources used for the current read.

Microsoft Learn Q&A. (2026, July 28). Defender for Endpoint consistently triggers twinapi.appcore.dll crash cascade on Azure AD joined BYOD device - reproducible, confirmed, need guidance - Microsoft Q&A. microsoft learn qna Issue: crash or hang in system stability Workflow: system stability
Microsoft Learn Q&A. (2026, July 15). 2026-04 Security Update (KB5083769) (26200.8246) causing failing boot loop - Microsoft Q&A. microsoft learn qna Issue: bsod / stop error in system stability Workflow: system stability
Microsoft Learn Q&A. (2026, June 21). If your Win11 25H2 laptop is randomly frozen in the morning, this is why. Microsoft shipped 25H2 26200.8246 that hard-freezes machines — and still won’t list it as a known issue - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, June 5). can not resume from hibernate - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, May 8). External monitors flickering across multiple devices after recent Windows 11 25H2 updates (Intel Iris Xe / UHD) - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, May 4). 2026-04 Security Update (KB5083769) (26200.8246) - Install error - 0x800736b3 - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, May 4). Microsoft Surface Device - Reset Failed - Local Install - After March / April 2026 Update with Hotpatch - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, April 30). I Fixed My Windows 11 Boot Loops and Crashes From Update KB5083769 — Here Is Exactly How I Did It Step by Step (AMD Radeon) - Microsoft Q&A. microsoft learn qna Issue: boot failure in startup / boot Workflow: startup / boot
Microsoft Learn Q&A. (2026, April 29). 2026-04 Security Update (KB5083769) (26200.8246) - Install error - 0x800f081f - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, April 29). Latest Windows Update Broke my Wifi / BT Drivers (2026-04 Security Update (KB5083769) (26200.8246) 2026-03 Update (KB5085516) (26200.8039) - - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, April 29). (KB5083769) (26200.8246) Discord and Outlook Broken since this update installed - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, April 29). Windows 11 update 2026-04 security update (kb5083769) (26200.8246) - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, April 24). Windows 11 25H2 Windows Update Fail - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, April 23). Network Failure - Ethernet & WiFi unable to connect to the internet - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, April 22). Install error 0x800f0845 + possibly related to monitor? - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, April 21). I cannot install update 25H2. Error code: 0x80070003 - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, April 18). Urgent: Windows Update Error 0x80070306 and Troubleshooter Failure - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, June 1). install failed 2026-05 .NET Framework Security Update (KB5087051) - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, May 3). PC Manager Version 3.21.1.0 in Windows 11 Pro - Toolbox is missing - how do I get it back? - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, April 21). Can No Longer Open Legacy Network Hard Drive - Microsoft Q&A. microsoft learn qna Issue: network regression in networking Workflow: networking
Microsoft Learn Q&A. (2026, April 20). Windows Update failed to check for updates with error 0x80240438. - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update

Official sources

Microsoft. (2026, April 14). Windows 11 release information.release health
Microsoft. (2026, April 14). Windows release health.release health
Microsoft. Download page.download