Delete a Registry Key or Value
Applies To: Windows 7, Windows Server 2008 R2
To find or change any entry in the registry, use Registry Editor. Once you have opened Registry Editor, you can proceed delete a registry key or value.
Incorrectly editing the registry may severely damage your system. Before making changes to the registry, you should back up any valued data on your computer.
If you make a mistake that results in your computer not starting properly, you can restore the registry. For instructions, see Restore the Registry.
To delete a registry key or value
In Registry Editor, click the key or entry you want to delete.
On the Edit menu, click Delete.
You can delete keys and values from your registry. However, you cannot delete a predefined key (such as HKEY_CURRENT_USER) or change the name of a predefined key.