Microsoft has released today new OOB (out of band) updates for Windows 11 and 10. The update is meant to fix the myriad of various major issues across Windows 11 and 10 that are affecting many systems, which were ironically broken by the previous KB5077744 and KB5077797 updates that were also OOB emergency updates meant to mend the earlier issues.
The new OOB updates have been released under KB5078127 on Windows 11 25H2 and 24H2, KB5078132 on Windows 11 23H2, and KB5078129 and KB5078131 on Windows 11 22H2 and other earlier Windows 10 versions. The changelog is given below:
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[File System] Fixed: After installing the Windows update released on and after January 13, 2026, some applications became unresponsive or encountered unexpected errors when opening files from or saving files to cloud-based storage, such as OneDrive or Dropbox. In certain Outlook configurations that store PST files on OneDrive, Outlook may hang and fail to reopen unless the process is terminated or the system is restarted. Users may also see missing sent Items or previously downloaded emails being re‑downloaded.
In terms of known issues, Microsoft says it is currently not aware of any known issues on Windows 10, but on Windows 11 the tech giant has confirmed a single known issue wherein the password icon can be invisible or be entirely missing on the lock screen. It can be mitigated by a known issue rollback (KIR). Microsoft writes:
"After installing the August 2025 non-security preview update (KB5064081) or later updates, you might notice that the password icon is not visible in the sign-in options on the lock screen. If you hover over the space where the icon should appear, you’ll see that the password button is still available. Select this placeholder to open the password text box and enter your password. After entering your password, you can sign in normally.
Individuals using Windows Home or Pro editions on personal devices are very unlikely to experience this issue. This issue primarily affects enterprise or managed IT environments.
This issue is mitigated using Known Issue Rollback (KIR). For enterprise-managed devices managed by IT departments that have installed the affected update and encountered this issue, IT administrators can resolve it by installing and configuring the Group policy listed below. The special Group Policy can be found in Computer Configuration > Administrative Templates >.
Group Policy downloads with Group Policy name:
- Download for Windows 11 version 24H2, Windows 11 version 25H2: Windows 11 24H2, Windows 11 25H2 and Windows Server 2025 KB5072033 251202_18051 Known Issue Rollback
Microsoft notes that the updates will be automatically installed. You can also manually download it on the Microsoft Update Catalog: KB5078127, KB5078132, KB5078129, KB5078131.