In addition to the not-so-helpful error message and its cryptic code (you can also find it in the Windows Event Viewer), the update hangs and stops responding at 96% ...

If your Outlook Classic freezes or hangs when you use POP accounts or deal with PST files, you'll need to remove Windows 11 ...

Windows 11 KB5074109 is now available for Windows 11 25H2 and 24H2. This release mostly has bug fixes and improvements.