First, the System Restore setup on Vista hogs a lot of space and continues to gobble it daily.. Next, especially if you're using a Lenovo/IBM machine, there are other programs which "save" files for recovery and as a result it simply drinks the hard drive storage space.. See the link below, it's been discussed before in the Vista forum.. See the link below:
You might want to read all the posts in the thread I linked to although the specific link should describe the problem. Things like temporarily disabling System Restore and other such programs should allow you to regain space.
Hope this helps.
For a few weeks now the size of my hard drive keeps shrinking.
I have AVG pro. and Spy Eraser. Nothing was detected.
Yesterday my hard drive was down to 30 GB from 280 a month ago.
I did restore the computer to a previous date but that did not do anything.
I had to restore the hard drive from an Acronis backup but I am afraid that whatever is eating my hard drive could be in the backup.
I have a Pentium Quad with Vista. 2GB memory and 380 GB HD.