Old but always reliable AMD based machine exhibits same behavior as reported; windows logo and zero response to input. Reboot triggers auto repair and I can now type this message but windows update is threatening to bone me again with the next reboot. I have a full (FULL) day of work ahead of me and would like to think that my system will be stable but am dubious. Deeply frustrating, where's the fix, Microsoft?
Type cmd in search and Run as administrator then type as follows;
net stop wuauservrmdir %windir%\softwaredistribution /s /qnet start wuauserv exit