How to get back up and restore registry in windows

How to back up the Registry

1. Open registry editor by type "regedit.exe" on run window and hit enter.

2. Now the "Registry Editor" window will be open.
3. Click on "file" on the menu bar.
4. Now click on "Export"

5. It will ask to give a name & place a location where you want to save the registry.
6. Give the name and location and click on "OK"
7. Now a file with extension .reg will be saved. and this is the registry back up of registry. 

 How to Restore the registry

1. Open registry editor by type "regedit.exe" on run window and hit enter.

2. Now the "Registry Editor" window will be open.
3. Click on "file" on the menu bar.
4. Now click on "Import"

5. It will ask to select the file where the registry file is already saved.
6. Give location and click on "OK"
7. This is the registry restore of your registry.