If you get the Error 0X8007007B when trying to enable system restore, do the following:
- Click the Start button, right click Computer, and click Properties
- In the left-hand column, click System Protection
- If prompted by UAC, click Continue
- Uncheck (C:) (Missing)
- You’ll be asked if you want to turn off protection, click Turn System Protection Off
- Press OK
System Restore will work again.