Problems with DISM

[desbest]

I'm having problems running DISM or Dism /Online /Cleanup-Image /RestoreHealth

I get Error: 0x80240021
Here's my log. Search for error.
Recent DISM Log ($2019802) · Snippets · Snippets

 

[Slavic]

(My apologies that I answer again, even though my previous reply in other thread apparently wasn't very helpful)
As I see from the log, you definitely have a problem with Servicing Stack (CBS):

2020-09-26 09:38:54, Info                  DISM   DISM Package Manager: PID=3580 TID=10468  Error in operation: (null) (CBS HRESULT=0x80240021) - CCbsConUIHandler::Error
2020-09-26 09:38:54, Error                 DISM   DISM Package Manager: PID=3580 TID=5484 Failed finalizing changes. - CDISMPackageManager::Internal_Finalize(hr:0x80240021)

Because of this, DISM /Online cannot work and cannot solve the problem. I have very few options to suggest: reinstall it or use System Restore to the date before this issue. Using the full system backup would be an excellent solution, but unfortunately too few people make such backups on regular basis. Maybe the more experienced in this area people can suggest more solutions.