which DISM did you run? What command?
I wasn't going to read a several hundred line dism log
this might help:
Download a copy of the win 10 iso from
Here - create ISO by telling it you want to make DVD - and then mount that ISO in file explorer (see
Here) and then copy paste the below command into command prompt (admin)
DISM /Online /Cleanup-Image /RestoreHealth /source:WIM:X:\Sources\Install.wim:1 /LimitAccess
Where "X" is the drive letter where the ISO is located. Simply change the "X" to the correct drive letter
then run SFC /scannow again.
If they still refuse to help, try a
repair install