BleepingComputer.com: Losing Disk Space Daily

Hi, I recently installed Vista Ultimate x64. I have a 29GB partition for Vista right now.

First it was only a 20GB partition and I had 3.5GB free space, the next day I was down to 230MB so I re sized my partition and increased it to 29GB, it showed I had 6.9GB. This morning, it shows I have 1.3GB left. So in 2 days, I lost about 12GB of space.

From properties it shows I have used 17.5GB. I ran TreeSize and it shows a weird folder, name [File] in my C drive that has the other 12GB. I can't open the folder, gives me error: C:\ Class not registered. It doesn't even have a folder icon. See photo of TreeSize for what I mean. Anyone know what the folder is and/or know how I can recover that space back?

I have tried the system restore solution, but there was no system restore point. I used vssadmin but there was nothing there.

This post has been edited by Lazyworm: 14 April 2009 - 12:19 AM

It sounds like you could have a decompression bomb on your computer but I could be wrong.

Hi Thumbtak, thanks for the reply. Googled Decompression Bomb, not much help or updated information on how to remove it. Any suggestions on how to remove it?

The first thing I would do is run an avast boot scan. I am unsure if it will work but it is worth a try.