- Microsoft released an Out-of-band KB5086672 update to fix an installation bug on Windows 11.
- The issue resulted in the error code 0x80073712 on some devices.
Microsoft is now releasing the Out-of-band (OOB) update KB5086672 as builds 26200.8117 and 26100.8117 for Windows 11 25H2 and 24H2 to address installation issues during the April 2026 update.
On March 31, 2026, the company began rolling out a patch to fix a problem during installation of the non-security update, which includes the changes expected to be available during the April 2026 Patch Tuesday Update.
According to the company, Windows 11 builds 26200.8117 and 26100.8117 fix the some update files are missing or have problems. We’ll try to download the update again later. Error code: (0x80073712)
error message while installing the March 2026 Windows preview update (KB5079391) on devices running Windows 11 25H2 or 24H2.
Windows 11 25H2 update KB5086672
- Release date: March 31, 2026.
- Builds: 26200.8117 (25H2), 26100.8117 (24H2).
- Purpose: Fixes installation error 0x80073712.
- Affected versions: Windows 11 25H2 and 24H2.
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 KB5086672 from the Microsoft Update Catalog for Windows 11.
This out-of-band update includes all fixes and improvements from KB5079473 (released March 10, 2026), KB5085516 (released March 21, 2026), and KB5079391 is no longer offered.
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.
Did you hit the 0x80073712 install error, and have you installed KB5086672 to fix it?
Voting closes: April 6, 2026 1:00 pm
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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