BACKING UP REGISTRY

SOLUTION:-
Many time in this blog or on other website there written "back up registry before editing it".
But user don't know how to do this.Its simple
Before you edit the registry, export the keys in the registry that you plan to edit, or back up the whole registry. If a problem occurs, you can then follow the steps how-to restore the registry to its previous state.

How to Export (back up) Registry Keys:-

• Click Start, and then click Run.

• In the Open box, type regedit, and then click OK.

• On the File menu, click Export.

• In the Save in box, select the boxs at the bottom the bottom according to weather you want to export all or only selected branches of the registry.

• Next select a location in which to save the backup .reg file. In the File name box, type a file name, and then click Save.

Restoring  the Registry:-

• To restore registry keys that you exported, double-click the .reg file that you saved.

NOTE:- its better to save backed-up registry file in other then operating system's drive.or better to save it to flash drive.

thank you :)