Microsoft

Microsoft update issues and install verdicts

Track Microsoft updates, known issues, install verdicts and community reports in one continuously updated index.

KB5120998

Windows 11 update KB5120998

Official information · Check whether you need these changes.

An optional Windows 11 preview update that delivers non-security quality improvements before the next regular cumulative update.

2026-08-27 · No Updatehey user sample yet · official evidence 1 · open known issues 0 · manual sources 4 · automatic clusters 0

KB5121000

Windows 11 26H1 KB5121000

Security update · Consider it if your device is supported.

The August 2026 cumulative security update for Windows 11 26H1, combining vulnerability fixes and operating-system quality improvements.

2026-08-11 · No Updatehey user sample yet · official evidence 1 · open known issues 0 · manual sources 0 · automatic clusters 0

KB5121003

Windows 11 24H2/25H2 KB5121003

Official issue found · Read the known issue before installing.

A cumulative update for Windows 11 24H2 and 25H2 containing the August 2026 security and quality fixes, including earlier cumulative changes.

2026-08-11 · No Updatehey user sample yet · official evidence 2 · open known issues 1 · manual sources 3 · automatic clusters 1

KB5101684

Windows 11 update KB5101684

Release history · Check the latest supported release first.

An optional cumulative preview of non-security quality fixes and feature improvements for Windows 11 24H2 and 25H2.

2026-07-28 · No Updatehey user sample yet · official evidence 1 · open known issues 0 · manual sources 0 · automatic clusters 0

KB5121767

Windows 11 update KB5121767

Security update · Consider it if your device is supported.

An out-of-band cumulative Windows 11 update released outside the regular schedule to address a specific issue quickly.

2026-07-18 · No Updatehey user sample yet · official evidence 1 · open known issues 0 · manual sources 0 · automatic clusters 0

KB5101650

Windows 11 24H2·25H2 KB5101650

Release history · Check the latest supported release first.

The July 2026 cumulative security update for Windows 11 24H2 and 25H2, including earlier fixes and current security patches.

2026-07-14 · No Updatehey user sample yet · official evidence 1 · open known issues 0 · manual sources 0 · automatic clusters 0

KB5094126

Windows 11 24H2·25H2 KB5094126

Release history · Check the latest supported release first.

The June 2026 cumulative security update for Windows 11 24H2 and 25H2, combining operating-system security and quality fixes.

2026-06-09 · No Updatehey user sample yet · official evidence 1 · open known issues 0 · manual sources 0 · automatic clusters 0

KB5089573

Windows 11 update KB5089573

Release history · Check the latest supported release first.

An optional Windows 11 preview package for testing non-security fixes and improvements before their regular release.

2026-05-26 · No Updatehey user sample yet · official evidence 1 · open known issues 0 · manual sources 0 · automatic clusters 0

KB5089549

Windows 11 24H2·25H2 KB5089549

Release history · Check the latest supported release first.

The May 2026 regular update applying security patches and cumulative quality fixes to Windows 11 24H2 and 25H2.

2026-05-12 · No Updatehey user sample yet · official evidence 1 · open known issues 0 · manual sources 0 · automatic clusters 0

KB5083769

Windows 11 24H2·25H2 KB5083769

Release history · Check the latest supported release first.

The April 2026 regular cumulative security update for Windows 11 24H2 and 25H2.

2026-04-14 · No Updatehey user sample yet · official evidence 1 · open known issues 0 · manual sources 0 · automatic clusters 0

KB5079473

Windows 11 KB5079473

Official information · Check whether you need these changes.

The March 2026 cumulative security update for Windows 11. It has since been superseded by later cumulative updates.

2026-03-10 · No Updatehey user sample yet · official evidence 1 · open known issues 0 · manual sources 0 · automatic clusters 0

KB5074109

Windows 11 24H2·25H2 KB5074109

Release history · Check the latest supported release first.

The January 2026 regular update containing security fixes and earlier cumulative changes for Windows 11 24H2 and 25H2.

2026-01-13 · No Updatehey user sample yet · official evidence 1 · open known issues 0 · manual sources 0 · automatic clusters 0

KB5063878

Windows 11 24H2 KB5063878

Release history · Check the latest supported release first.

The August 2025 cumulative security and quality update for Windows 11 24H2.

2025-08-12 · No Updatehey user sample yet · official evidence 1 · open known issues 0 · manual sources 0 · automatic clusters 0

KB5062553

Windows 11 24H2 KB5062553

Release history · Check the latest supported release first.

The July 2025 Windows 11 24H2 cumulative update with security, graphics, and notification fixes.

2025-07-08 · No Updatehey user sample yet · official evidence 1 · open known issues 0 · manual sources 0 · automatic clusters 0

KB5060842

Windows 11 24H2 KB5060842

Release history · Check the latest supported release first.

The June 2025 Windows 11 24H2 cumulative update with security, System Restore, and Windows Hello improvements.

2025-06-10 · No Updatehey user sample yet · official evidence 1 · open known issues 0 · manual sources 0 · automatic clusters 0