Was that error for the /restorehealth cmd ?
I think I'd see if a repair install would solve things.
This won't affect your personal stuff or installed programs.
If you don't have an install disk or USB then you can create either after reading the instructions at
https://www.microsoft.com/en-gb/software-download/windows10That will give you the current version of 1703 15063.0 and the subsequent updates will update that to 15063.540.
When done, with Windows booted up, open Windows Explorer - This PC - insert the media and double click on the drive when the media comes up.
If using a disk, that will start the process but if using an USB, that will open the files where you will need to click on setup Application or you can right click on it and select Run as administrator.