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#830
Your question is not clear. What do you mean by repair.
A repair normally means repairing existing installation keeping all files intact including all programs.
There is also a recovery i e. you reinstall OS optionally keeping existing data but not programs).
Finally, there is a clean install where OS is completely reinstalled from scratch (pretty much same as a recovery not keeping data).
Of all those options, only the last one can be done using dism from a usb installation drive.