sonicrules1234/sfcparser
After one finishes following instructions from https://support.microsoft.com/en-us/help/929833/use-the-system-file-checker-tool-to-repair-missing-or-corrupted-system to get the sfcdetails.txt file, this tool will parse it and copy the needed files from the extracted install.wim over the corrupted/missing files on the windows disk.