The Windows Vista Service Pack 1 (SP1) Files Removal Tool (VSP1CLN.exe) can be used to remove the files that are archived after Windows Vista SP1 is applied. This may free up close to 1GB of valuable disk space.

You may use this integrated tool if:

1. Your Windows Vista (with SP1) system is currently stable, and you do not plan to remove Service Pack 1 any time in future.
   
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2. Your hard disk is seriously running out of space.

Note: You will be unable to uninstall Windows Vista Service Pack 1 after running this tool.