Free Disk Space running low over night (Win 7)

PogoMips

Honorable
Feb 7, 2013
4
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10,510
I noticed the last days that I got mysterious warnings on low disk space and I can't determine what occupies my free space.

So last night I had 5GB of free space and this morning I'm down to 800MB. And I have no clue what's going on here. I noticed that problem a couple of days ago, and because of that I did a scan with WinDirStat, to check what occupies the most space. I got some virtual machine images that are pretty large, but consistent in size. also I got the pagefile and hibernate, but they did not change either. As far as I can see the biggest files did not change.

Also WinDirStat tells me that actually only 63.7GB are used, whereas the Windows dialog tells me 73.5GB are used.

I also ran a windows search on all file modified or created between yesterday and today but there was nothing that could be responsible for a 4GB space loss.

It also happened before that the occupied space becomes free again after a couple of hours or days. But I can't find a pattern in that...
 

PogoMips

Honorable
Feb 7, 2013
4
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10,510
The virtual as well as the physical memory are 3547MB big. The HDD has a size of 75GB.

I don't play games, this is a work computer. I currently only run office and a java development environment.
 

PogoMips

Honorable
Feb 7, 2013
4
0
10,510
I ran the Cleaner a couple of days ago. It got me around 500MB or something. In the last 3 days I lost again around 3GB, without installing software or creating a large amount of files.