System restore

A tool that tracks changes to your computer and creates a restore point when it detects the beginning of a change. You can use the System Restore Wizard to select a restore point to restore your computer to an earlier state when your computer was functioning the way you like.

steps to perform system restore 

1  Click on "START" then "RUN"

2  Type "MSCONFIG" and click on "OK"

3  Now Click on "LAUNCH SYSTEM RESTORE"

4  Leave Defaults and Click "NEXT"

5  Select a date to restore from, (Warning all software installed after date will be completely removed) and click on "NEXT"

6  You will be asked to confirm date, if you are happy then click on "NEXT"

7  Your computer will now reboot, do a bit of work and when finished the below screen will be seen, your problem should now be solved, if not try another date prior to this.

8  Done. You can undo system restore by simply launching it again and selecting "UNDO RESTORE"