Q: when installing Windows 10 update, I get this error: 0x80073712.
chicagotech.net: quoted from Microsoft article: A file needed by Windows Update is likely damaged or missing. Try repairing your system files: Select the Start button and type command prompt in the search box on the taskbar. Choose Command Prompt from the list of results. In the window that appears, type DISM.exe /Online /Cleanup-image /Restorehealth and press the Enter key.