This tutorial is the opposite one of Create a system restore point in Windows 7
Although Windows 7 is a good operating system (at least compared to Windows Vista), it is still possible to mess things up.
But lucky for us, we can use System Restore to fix things.
First let’s start the System Restore Wizard. Press the Start button, type rstrui in the search box and press Enter:
A new window will appear:
Press Next > to continue:
In this screen you can choose the restore point you wish to use. If you press Scan for affected programs a new window will appear.
After a few minutes of scanning you will be informed of programs or drivers that may be deleted or restored by the system restore:
Select the restore point you wish to use and press Next >. Confirm your restore point and Restart your computer to roll your system back.
Note: Always create restore points before installing new (and possibly dangerous) software.
Note: System Restore is a good way to avoid reinstalling Windows. Be sure to use it.
Note: Preferably run System Restore from Safe Mode