How to Restore Uninstall Confirmation Prompt Box in Windows Vista and 7?

NOTE: This tutorial is old and was posted for Windows Vista. Now it has been updated to work with Windows 7 as well.
When you try to uninstall a software using Control Panel -> Programs and Features in Windows Vista or 7, Windows shows you a dialog box to confirm your choice as shown in following screenshot:

The dialog box also contains a checkbox which allows you to save your choice for future and if you select the checkbox and click on Yes or No button, Windows will remember your choice and will never show the uninstall confirmation prompt box.
Once you do this, you'll have no way left to restore the confirmation box.
Today in this tutorial, we'll tell you a simple way to restore the message box if you accidentally selected the checkbox "In the future, do not show me this dialog box" while clicking on yes or No button.
So without wasting time, lets start the tutorial:
1. Type regedit in RUN or Start menu Search box and press Enter. It'll open Registry Editor.
2. Now go to following key:

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\DontShowMeThisDialogAgain

3. In right-side pane, look for following String value:

{948e51fb-0a48-44f0-86ac-33c36def540c}

It would be set to NO. Either delete it or change its value to YES.

4. That's it. Now you'll get the uninstall confirmation prompt box back.
PS: If you want a ready-made registry script to do the task automatically, download following ZIP file, extract it and run the extracted REG file. It'll ask for confirmation, accept it:
Download Registry Script
Also check:
How to Completely Uninstall / Remove a Software Program in Windows without using 3rd Party Software?

Posted in: troubleshooting