Vista Problem: Filling My Hard Drive

I ran into my first major headache with Windows Vista. After I added a second internal hard drive to my system, it quickly began to fill up, to the point where it is now 99% full. But I am only storing about 40% worth of stuff on it!

At first, i was worried I had a virus or something, but then I remembered about Vista's Shadow Copy feature, which copies old versions of files so that if you make a change and you want to undo it, you can restore a previous version.

I found this article which explains how to dig into the settings for Volume Shadow Copy. It turns out that somehow, Vista decided that the shadow copy settings for my D: should be UNBOUNDED, which means, copy until the drive is full!

I was able to use VSSADMIN to fix it, following the directions of the posting. I simplay ran this command as an administrator:

vssadmin Resize ShadowStorage /On=D: /For=D: /MaxSize=50GB

Note to Microsoft: Volume Shadow Copy should default to a safe value, and not to UNBOUNDED!