Windows 11 25H2 (Build 26200.7623)

ProductWindows 11 Version25H2 Release dateJan 13, 2026 File size

Evidence summary: Negative 44 user reports found

Community consensus not established — 44 user reports, evidence strength High. This is a verified report sample, not live consensus telemetry.

Last evidence checked: Sep 6, 2026

AUXSAYS verdict WAIT

Current reports mention update/install failure, unspecified windows issue, 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, unspecified windows issue in Windows workflow, bsod / stop error in system stability.

Accepted reports: 44
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 26200.7623 (KB5074109). Released 2026-01-13 on the General Availability Channel. Update type 2026-01 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: Jan 13, 2026
File size
Official source checked: Sep 15, 2026
Official notes checked: Sep 15, 2026

Checksum

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

User Reports / Sources (44)

User report sources used for the current read.

Microsoft Learn Q&A. (2026, March 3). Security Update (KB5074109) (26200.7623) - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, February 26). How to fix Install error - 0x800f0991 [2026-01 Security Update (KB5074109) (26200.7623)] keeps failing - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, February 25). My second monitor doesn't work after update - Microsoft Q&A. microsoft learn qna Issue: display regression in display / graphics Workflow: display / graphics
Microsoft Learn Q&A. (2026, February 23). Bluetooth is not showing/working after windows 11 security update - Microsoft Q&A. microsoft learn qna Issue: unspecified windows issue in Windows workflow Workflow: Windows workflow
Microsoft Learn Q&A. (2026, February 21). getting error 0x80070005 while downloading update (KB5074109) (26200.7623) - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, February 18). Windows 11security update will not install - how do i fix this ? - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, February 18). Cant install (KB5074109) (26200.7623) - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, February 18). Key update keeps on failing (KB5074109) (26200.7623) - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, February 17). I have KB5074109 (26200.7623) runs through the process of installing, but fails at the end. - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, February 17). 2026-01 Security Update (KB5074109) (26200.7623) won't install - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, February 17). install error 0x800f0991 - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, February 17). 2026-01 Security Update (KB5074109) (26200.7623) Failed to install on ‎06/‎02/‎2026 - 0x800f0983 - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, February 14). KB5074109 breaks LocalizedResourceName parsing in desktop.ini files - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, February 13). windows 11, unable to install 2026-01 security update (KB5074109) (Build 26200.7623) - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, February 12). I tried to install "2026-01 Security Update (KB5074109) (26200.7623)" but it fails after repeated attempt - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, April 25). I am unable to fix update stack package 922.415.111.0 . - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, March 5). Microsoft Update Health Tools - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, February 13). Windows Search not functional after recent update - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, February 10). Security Update (KB5074109) (26200.7623) Install error - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, February 8). Outlook Classic not opening properly or recording sent mails after 2026-01 Security Update (KB5074109) (26200.7623) - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, February 4). security updates are not installing - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, February 2). 2026-01 Security Update (KB5074109) (26200.7623) - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, January 31). 2026-01 Security Update won't install; troubleshooter diagnostic failed - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, January 30). Start menu opens on the wrong side after updating to (KB5074109) (26200.7623) - Microsoft Q&A. microsoft learn qna Issue: unspecified windows issue in Windows workflow Workflow: Windows workflow
Microsoft Learn Q&A. (2026, January 30). Security Update KB5074109 is causing my computer to not boot. - Microsoft Q&A. microsoft learn qna Issue: bsod / stop error in system stability Workflow: system stability
Microsoft Learn Q&A. (2026, January 29). 2026-01 Security Update (KB5074109) (26200.7623) will not install on Windows 11 Home 25H2 Build 26200.7462. I have tried all the recommendations I can find on the web using dism and sfc tools as well as resetting the windows update process but nothing wo - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, January 28). 2026-01 Security Update (KB5074109) (26200.7623) will not install. - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, January 27). Is there a fix for this: Outlook Classic not opening properly or recording sent mails after 2026-01 Security Update (KB5074109) (26200.7623) - Microsoft Q&A. microsoft learn qna Issue: crash or hang in system stability Workflow: system stability
Microsoft Learn Q&A. (2026, January 26). Windows update 2026-01 Security Update (KB5074109) (26200.7623) failes to install with Error code: (0x80073712) - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, January 26). Fully updated windows 11 keeps turning off instantly - Microsoft Q&A. microsoft learn qna Issue: unspecified windows issue in Windows workflow Workflow: Windows workflow
Microsoft Learn Q&A. (2026, January 25). Phone Link, Your Phone, Link to Windows, whatever it's called now - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, January 25). 2026-01 Security Update (KB5074109) (26200.7623) Install error - 0x800f0991 - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, January 23). Security Update failed - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, January 23). Computer crashing after a recent Windows Update - 2026-01 Security Update (KB5074109) (26200.7623) - Microsoft Q&A. microsoft learn qna Issue: bsod / stop error in system stability Workflow: system stability
Microsoft Learn Q&A. (2026, January 23). Unable to install security update KB5074109, keep getting Install error - 0x80070306 - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, January 22). How do I fix error 0x80070306 when installing Update KB5074109 - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, January 22). necesitamos desitalar la actualizacion KB5074109 - Microsoft Q&A. microsoft learn qna Issue: crash or hang in system stability Workflow: system stability
Microsoft Learn Q&A. (2026, January 21). Windows 11 Pro security update KB5074109 messed up GPU rendering - Microsoft Q&A. microsoft learn qna Issue: bsod / stop error in system stability Workflow: system stability
Microsoft Learn Q&A. (2026, January 21). Network issues isolated to my pc - Microsoft Q&A. microsoft learn qna Issue: network regression in networking Workflow: networking
Microsoft Learn Q&A. (2026, January 21). I can't update windows - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, January 21). Since 2026-01 Security Update (KB5074109) (26200.7623) installed location incorrect - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, January 20). 2026-01 Security Update (KB5074109) (26200.7623). Error code: (0x80073712). - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Learn Q&A. (2026, January 19). my computer has an update duplication glitch, tried everything, can't fix it. - Microsoft Q&A. microsoft learn qna Issue: update/install failure in windows update Workflow: windows update
Microsoft Tech Community. (2026, January 15). Installation Failure of KB5074109 on Windows 11 25H2 Multi-Session – Error 0x80073712. microsoft tech community Issue: update/install failure in windows update Workflow: windows update

Official sources

Microsoft. (2026, January 13). Windows 11 release information.release health
Microsoft. (2026, January 13). Windows release health.release health
Microsoft. Download page.download