Windows Update Error 0x80073712

Run the DISM tool

1. tap Search.
2. Enter command prompt in the search box.
3. In the list of results, swipe down on or right-click Command Prompt, and then tap or click Run as administrator.
4. In the Administrator: Command Prompt window, type the following commands. Press the Enter key after each command:

DISM.exe /Online /Cleanup-image /Scanhealth
DISM.exe /Online /Cleanup-image /Restorehealth

5. To close the Administrator: Command prompt window, type Exit, and then press Enter.
6. Run Windows Update again.