Windows 10 0xc00021a boot error, i had tried almost everything... Its possible to repair Win10 without losing system settings?

[ruthan]

Ok i did some fiddling with Recovery partition and all recovery bcd and got some new error, after trying automatic Starup repair. at tthe end of SrtTrail.txt is this text:

Root cause found: 
---------------------------
A recently serviced boot binary is corrupt.

Repair action: Uninstall latest LCU  // LCU= Latest Cumulative Update, problem that i needed saw LCU is name of update so im not sure how to identify them
Result: Failed. Error code =  0x82f //  0x800f082f  It should means file not found and problem with Component Store.
Time taken = 4735 ms

 

Edited September 20 by ruthan

[ruthan]

I wonder is there any tool, which can check and fix Windows 10 registry for not booting installation?
Same about component store, if im not wrong dism and sfc, are doing it, their finish fine - no error or errors fixed, but i still get stuck on boot 21a bluescreen.
  There is also quite a lot of dism tool, but not have enough knowledge which one could help with this booting problem.

[ruthan]

I found out that there is problem with MS-Dart 10, i believe its update installer, it always report that some update was uninstalled, but when i run it again all updates are still there  
I tried DIsm++ from boot cd, but it fails for uinstalling too and it claim that some updates are not removable

  Ok i found out how to enable to uninstalling through DISM++ and Dart, there some SessionsPending values in Registry:
https://varidan.com.au/how-to-fix-the-dreaded-windows-error-0x800f082f/

  But only some update, these marked as permanent in DISM++ still is not possible to remove, when DART priniting that they were sucessfully removed

Edited September 24 by ruthan