Many users who have by now installed Vista SP 2 have reported massive increases in disk space following the update. This is done by permanently deleting previous versions of files (RTM and SP1) that are serviced by SP2.

For more information on Vista SP 2 click here:

http://msdn.microsoft.com/en-us/windowsserver/dd262148.aspx

1. Vista Sp 2 Free Disk Space Requirements
2. Vista SP 2 not always available via Windows Update
3. Windows 7 released for Technet and MSDN subscribers
4. Windows Vista to Windows 7 upgrades
5. Windows Vista Tip