Disk Usage

Just wondering if there’s any good tools for measuring Disk Usage on Windows 7, or something to automatically delete any files that haven’t been used in a month or two.
My HD is only 93GB, so space is crucial to me. Installing Call of Duty 4 and WoW has taken up an additional 20GB to the 30GB I have from music. I can’t seem to figure out what else is using the other 43GB though besides a few pictures, OS, and some small programs.
Also, control panel doesn’t show program sizes…
Answer #1
Nothing for Windows 7?
Answer #2
System restore takes alot of space if you have it enabled , Other then that you can just run a custom search
for files that are at least in *x* size , puting 50000 wll search for files that are least 50MB in size , Also , Clear your
browser’s cache and temp directories (c:\users\username\local settings\temp and c:\windows\temp) , Other then
that you should seriously consider purchasing a new HD , They’re quite cheap nowadays
Edit : You shouldn’t disable system restore unless you use an alternative,Like a disk imaging program,Norton ghost,Acronis trueimage etc , Windows 7 actually have its own built-in disk imaging app , I think it only comes with the ultimate ver tho
Answer #3
i’m using 64-bit ultimate actually. thanks for the reply.
Answer #4
http://windirstat.info/