- If you made a backup of the registry using Tweaking's Registry Backup before you ran Windows Repair then you can use the same program to restore the registry to the previous state. The program comes with Windows Repair. (Or download & install the program separately).
- You didn't use any cleaner program (e.g. Ccleaner) before you ran Windows Repair ? E.g Ccleaner's is known to wipe a lot of traces related to Office programs, including those registry MRUs. Because I am not aware that Windows Repair deletes those registry keys. At least, it's not supposed to.