The Update BureauKB5121767: Cumulative update for Windows 11, versions 24H2 and 25H2, July 2026. Installation requires a restart
In short
Updates Windows 11 versions 25H2 and 24H2. Installing it requires a restart.
Does it affect you? Applies to: Devices running Windows 11 version 25H2 (build 26200.8894) or version 24H2 (build 26100.8894), on x64 or Arm64.
Review notes Additional details from the official release notes (1) Read note
- Does it affect you? This update is for devices running Windows 11 version 25H2 or 24H2. It installs build 26200.8894 on 25H2 and build 26100.8894 on 24H2.
The official sources are linked at the end of the page.
In detail
- Other The update installs build 26200.8894 on version 25H2 and build 26100.8894 on version 24H2, for x64 and Arm64 devices.
- Lifecycle Updates for Windows 11 version 24H2 Home and Pro end on October 13, 2026.
Technical details
Data sheet · Security · Downloads · Components Click to collapse or expand
Data sheet
- Released
- 2026-07-18
- Classification
- Updates
- Type
- Cumulative update
- Restart
- Required
- Replaces
-
KB5101650, KB5095093, KB5094126, KB5089573
+55 earlier
KB5089549, KB5083631, KB5083769, KB5086672, KB5079391, KB5085516, KB5079473, KB5077241, KB5077181, KB5074105, KB5078127, KB5077744, KB5074109, KB5072033, KB5070311, KB5068861, KB5067036, KB5070773, KB5066835, KB5065789, KB5068221, KB5065426, KB5064081, KB5063878, KB5062660, KB5064489, KB5062553, KB5060829, KB5063060, KB5060842, KB5058499, KB5061977, KB5058411, KB5055627, KB5059087, KB5055523, KB5053656, KB5053598, KB5052093, KB5051987, KB5050094, KB5050009, KB5048667, KB5046740, KB5046617, KB5044384, KB5044284, KB5043178, KB5043080, KB5041865, KB5041571, KB5040529, KB5040435, KB5039304, KB5039239 - Replaced by
- KB5121003
| Version | Build | Channel |
|---|---|---|
| 24H2 | 26100.8894 | General availability |
| 25H2 | 26200.8894 | General availability |
Security
No vulnerabilities are listed for this update.
Downloads (Microsoft Update Catalog)
x64
24H2
5.3 GB
Arm64
24H2
4.8 GB
x64
25H2
5.3 GB
Arm64
25H2
4.8 GB
Updated components
854 files changed since the previous update for the same versions.
| Top changed components | Files |
|---|---|
| Graphics and display | 5 |
| Hyper-V and virtualization | 4 |
| Secure Boot | 4 |
| Kernel | 3 |
| Printing | 3 |
| File Explorer and shell | 2 |
| Networking | 2 |
| Search | 1 |
Sources
Updated
Checked automatically: 8 of 8 checks passed · compared with Microsoft's page on Nov 8, 2026
- Quotes found in the official pages: passed
- Numbers found in the sources: passed
- Vulnerabilities from the dossier only: passed
- Links to allowed domains only: passed
- Every official change covered: passed
- Readable plain text: passed
- Changes confirmed by the file list: passed
- Sources agree: passed
A second AI read the text against the sources: correctness 4/5, clarity 5/5, completeness 5/5. How we work
Published by The Update Bureau. Written with AI from Microsoft's own documents, checked by rules and a second AI. How we work · Report a mistake