@nko89 Did you manage to run DISM before sfc? The order is important: if DISM doesn't run to completion, sfc might not fix anything.
If DISM doesn't work, then you may need to do a repair install of Windows. This doesn't need to erase your data; the goal is to get a fresh Windows, which you can do while preserving your apps and files. Instructions are here:
https://www.tenforums.com/tutorials/16397-repair-install-windows-10-place-upgrade.html
If you get to step 13 and are NOT asked whether you want to keep your personal files, back out and start over.