- Microsoft released out-of-band updates KB5077744 and KB5077797 to fix bugs introduced in the January 2026 Patch Tuesday update.
- Affected issues include Remote Desktop authentication failures on Windows 11 25H2, 24H2, and 23H2.
- Windows 11 23H2 devices with Secure Launch could not shut down or hibernate and instead restarted.
Microsoft is now releasing the Out-of-band (OOB) update KB5077744 as builds 26200.7627 and 26100.7627 for Windows 11 25H2 and 24H2 to address a bug with the Remote Desktop authentication process introduced with the January 2026 update.
In addition, the company is making available the Out-of-band update KB5077797, build 22631.6494, for Windows 11 23H2 to address the same Remote Desktop authentication problems, as well as a recent problem introduced with the first security update of the year that prevented users from fully shutting down their computers.
On January 13, 2026, Microsoft began rolling out the first Patch Tuesday Update of 2026 for versions 25H2, 24H2, and 23H2, as a small release with only security fixes. However, shortly after, a small number of devices running version 23H2 with Secure Launch were unable to shut down or enter hibernation. Instead, the computer would restart.
At the same time, after installing the update KB5074109 on versions 25H2 and 24H2, some users started to experience sign-in failure during Remote Desktop connections. This bug was also affecting devices running version 23H2.
Now, the company is quickly making available the Out-of-band update KB5077744 and KB5077797 to address the issue on affected devices.
Windows 11 25H2 update KB5077744
- Release date: January 17, 2027.
- Builds: 26200.7627 (25H2), 26100.7627 (24H2).
- Purpose: Fixes sign-in failures during Remote Desktop connections bug introduced with the January 2026, Patch Tuesday update.
- Affected versions: Windows 11 25H2 and 24H2.
- Not affected: N/A.
Windows 11 23H2 update KB5077797
- Release date: January 17, 2027.
- Builds: 22631.6494 (23H2).
- Purpose: Fixes shutdown and Remote Desktop authentication bugs introduced with the January 2026, Patch Tuesday update.
- Affected versions: Windows 11 23H2.
- Not affected: Windows Server.
If you have a computer affected by these bugs, you should install this update immediately by going to Settings > Windows Update and clicking the “Check for updates” button.
Alternatively, you can download and install the update KB5077744 from the Microsoft Update Catalog for Windows 11. If you’re still on Windows 11 23H2, you can download the update KB5077797 here.
As a reminder, Windows 11 23H2 reached end of support on November 11, 2025, but extended support for organizations will continue until November 10, 2026. If you want to maintain your computer support, it’s recommended to upgrade to Windows 11 25H2 as soon as possible.
Out-of-band (OOB) updates explained
Out-of-band updates are emergency patches released outside the regular monthly schedule. Microsoft issues them to address urgent problems (such as newly discovered security flaws or critical bugs) that can’t wait for the next Patch Tuesday.
These updates are cumulative, meaning they include all previous fixes (security and non-security) plus the new targeted resolution.
Mauro Huculak is a Windows How-To Expert and founder of Pureinfotech in 2010. With over 22 years as a technology writer and IT Specialist, Mauro specializes in Windows, software, and cross-platform systems such as Linux, Android, and macOS.
Certifications: Microsoft Certified Solutions Associate (MCSA), Cisco Certified Network Professional (CCNP), VMware Certified Professional (VCP), and CompTIA A+ and Network+.
Mauro is a recognized Microsoft MVP and has also been a long-time contributor to Windows Central.
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