How to Remove Programs from Windows 7 Registry
Removing a program from the Windows 7 Registry Editor ensures that you completely remove the program from your computer. When the Add/Remove utility does not completely get rid of a program, the Registry Editor is a effective alternative. Although using the Registry Editor is a simple process, you must be careful not to delete the wrong registry key.
Press "F" plus the "Windows" key at the same time. Type "regedit" in the dialog box and press "Enter." This opens the Registry Editor.
Navigate the following registry path on the left side of the Editor:HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\currentversion\Uninstall
Select the program that you wish to remove in the "Uninstall" folder in the left pane. Double-click "uninstallstring" in the right pane and then copy the "Value data." Exit the Registry Editor.
Repeat the first sentence in Step 1. Paste the string in the dialog box and click "OK." This will start the removal of the program.