Microsoft has released several emergency out-of-band (OOB) patches for Fix issues caused by monthly security updates published last week. The bugs affect Windows 10, Windows 11 and also Windows Server, especially bugs for Cloud PCs.
Windows instability is a frequent source of debate and one of the biggest criticisms that has been made of Microsoft. The updates released for the operating systems solve known problems, but cause others in a snowball that seems to have no end. This is what happened with the first update of 2026.
The first issue affects Windows 11, Windows 10, and Windows Server, and blocks access to Microsoft 365 Cloud PC sessions. “After installing the January 2026 Windows security update, credential prompt failures may occur in some remote connection applications”Microsoft explained.
This includes remote desktop connections through the related app on Windows client devices, in Azure Virtual Desktop, and Windows 365. The Windows app is affected by this issue on specific builds of Windows and may experience sign-in errors.
The second error prevents some PCs with Secure Launch enabled go out or go into hibernation. This issue only affects Windows 11 version 23H2: “After installing the January 13, 2026 Windows Security Update for Windows 11, version 23H2, some PCs with Secure Launch cannot shut down or enter hibernation. Instead, the device reboots.”.
To address these issues, Microsoft has released the following out-of-band updates:
- Windows Server 2025 KB5077793.
- Windows Server 2022 KB5077800.
- Windows Server 2019 KB5077795.
- Windows 11 25H2 and 24H2 KB5077744.
- Windows 11 23H2 KB5077797.
- Windows 10 KB5077796.
Microsoft says these updates are not currently available through Windows Update and must be downloaded and installed manually from the Microsoft Update Catalog. For organizations that cannot install out-of-band updates, Windows administrators can deploy a Known Issues Rollback (KIR) on company-managed devices to fix the corrupted remote desktop issue via Group Policy.
