Back Up and Restore Windows Registery

BACKUP

1. goto start >> run
2. typr "regedit" With out quotes
3. right click on my computer
4. then click on "export"
5. specify the path where you want to take back up
6. click on save

Restore:

1. 
   
   To restore goto command prompt ( start >> run >> type "cmd")
2. 
   
   type "regedit /s path of backup file" and press enter
3. 
   
   for example