Here's how to download & install updates manually:
- You can visit catalog.update.microsoft.com website. This is official Microsoft website.
- In the search box, type KB number for update failing on your device.
- From search results, select correct version of update.
- Download it as .msu file and then you can install it offline as well.
- Once install, check update history, it should show updates as installed.
If you need detailed guide on this, refer this article:
https://www.kapilarya.com/how-to-install-updates-manually-in-windows-11
Let us know if this helps!
Note: Included link in this reply refers to a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.