I checked my WinSxS folder, only 10GB, with the rest of the OS taking up ~9GB which still doesn't answer why I am missing out on 20GB of storage on the drive.Originally Posted by MrLinky
It is your WinSxS folder. Google it if you want to learn more, but basically Windows stores important system files in here, as well as hard-links to other important system files that are stored outside of the WinSxS folder. Windows keeps a copy of every version of these files, so over time this folder can grow to massive proportions.
No, it is software related.Originally Posted by Hattifnatten
What disk do you have? Something similar happened to me and a friend of mine. All of a sudden we only had a few gb left, even though we wasen't really using more than ~70-80 (120GB drives). Happened on three occasions with my Force 3. Went back to normal after a day or so. Could it be Sandforce-related?
Lol, ran it, and found that i have a 12GB hibernation file that doesn't show up in my C:\ Drive.