Windows 11, version 26H2 known issues
Microsoft lists 1 open issue for Windows 11, version 26H2. Below is every issue Microsoft has listed for this version, with the update that caused it and when it was resolved.
| Issue | Status | Caused by | Opened | Resolved or updated |
|---|---|---|---|---|
| SQL Server linked server connections might remain open | Confirmed | OS Build 26300.9711, KB5127648, 2026-10-13 | 11 November 2026 | 12 November 2026 |
| USB audio devices might fail to start or produce no sound | Resolved KB5132061 | N/A | 4 November 2026 | 10 November 2026 |
| Devices might experience a black screen or desktop loading issues after sign-in | Resolved KB5127648 | N/A | 13 October 2026 | 13 October 2026 |
| Remote Desktop connections might fail for non-admin users with error 0xC000000D | Resolved KB5127936 | OS Build 26300.9550, KB5124010, 2026-09-22 | 13 October 2026 | 28 October 2026 |
| Applications which require AC-3 audio decoding might close unexpectedly | Resolved KB5127648 | OS Build 26300.9550, KB5124010, 2026-09-22 | 8 October 2026 | 13 October 2026 |
| Domain-joined devices might lose their secure trust relationship with the domain | Resolved KB5124010 | N/A | 16 September 2026 | 22 September 2026 |
Source: Microsoft's release health page for Windows 11, version 26H2. Dates are in UTC.
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