No Windows PC so far can lose disk space while the PC sleeps. This would be a first so my bet is it's untrue.
You can go get TREESIZE if the usual items fail but with a 200 MB drive in 6 spaces is going to be trouble. My bet is this owner needs to be given time to think over their choices. You might not be able to help them as I've found many to want to control what goes where for what reasons they often keep to themselves.
Sometimes they can't be helped. Sometimes the light comes on and they drop the number of partitions to where it's manageable.
Bob
Running XP w/SP 3 on a 3.2 GHZ processor w/2 MB ram. 200 MB internal hard drive segmented into 6 separate spaces, with drive "C" being the largest at 70 GB. Started getting "Low Disk Space" messages 2 months ago and added 10GB to C to bring it up to 80GB. Since then, it has constantly lost disk space while I have not added a single application or file to that drive. I can put it to sleep with 6GB unused and when I wake it up, there is only 2GB. Next time it might be back up to 4GB, but then it goes back down and right now it is at 1.5GB.
I have cleared out everything I can possibly think of that is not required to run the OS and the rest of the applications. Still no help.
Has anyone ever seen a problem like this?? Where is that disk space going?? What's making it disappear??
Help.......please!!!

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