Registry - How to Backup your Registry
First, before editing your registry remember to always back it up first, just incase you do something wrong. The registry when modified is an instant change and cannot be undone.
BACK UP REGISTRY: So to open the registry editor click on "START", "RUN", then type "REGEDIT" (No speech marks). The registry editor will now open, click on "FILE" then "EXPORT". From the save window that appear type in a file name (ie regback.reg), now click on "SAVE". Your registry has now been backed up.
Disclaimer: This information is provided as is and we cannot guarantee that editing the registry will not cause serious damage. You use this information at your own risk.