SAME problem here!
"Installation Failure: Windows failed to install the following update with error 0x800F0922: Security Update for Windows 10 Version 1909 for x64-based Systems (KB4535680)."
Tried many solutions at no avail...
I will not RESIZE any system partitions! NONSENSE! All updates went OK until now, and i'm not messing my drive just to test this!!!
MICROSOFT, any ideas?
The UPDATE is this one (and YES, it has to do with BOOT!) https://support.microsoft.com/en-us/topic/kb4535680-security-update-for-secure-boot-dbx-january-12-2021-f08c6b00-a850-e595-6147-d0c32ead81e2
MICROSOFT, please correct this!
HERE is the LOG!
2021/03/24 13:58:01.2521904 19664 9720 Handler CBS called Terminate
2021/03/24 13:58:01.2613142 19664 13180 Handler Completed install of CBS update with type=0, requiresReboot=0, installerError=1, hr=0x800f0922
2021/03/24 13:58:01.2644155 19664 13180 Handler * END * CBS Install
2021/03/24 13:58:01.2650142 19452 9956 Agent ***FAILED* [8024200B] Method failed [CAgentUpdateManager::InstallUpdate:11561]**
2021/03/24 13:58:01.2661031 19452 9956 Handler Loaded state: cCompleteIterations: 1, pt: SelfContainedNoExpressPayload, nNextRequestID: 1