Removing Windows Vista SP1
You can use Programs and Features in Control Panel to remove SP1 and restore your computer to its previous state.
To uninstall SP1:
- Click Start, and then click Control Panel.
- Click Programs.
- Under Programs and Features, click View installed updates.
- On the Uninstall an update page, click Service Pack for Microsoft Windows (KB936330), and then click Uninstall.
- Follow the instructions on your screen.