Microsoft released KB5086672 to fix installation error 0x80073712 caused by the optional March update KB5079391.

Microsoft told Windows Latest it pulled Windows 11 KB5079391 after the optional update caused installation issues on some PCs.

Microsoft has temporarily stopped distributing its KB5079391 non-security feature update for Windows 11 after widespread reports of installation failures. Users attempting to install the late-March ...

New out-of-band Windows 11 update fixes March's installation errors - how to get it ...

Microsoft released another Windows 11 emergency update yesterday to address an issue preventing users from installing the ...

Couldn't install the latest Windows 11 update? You should be good to go now as Microsoft has rushed out a fix.