I am having a similar problem, which I never had before. I keep getting a message indicating that I have run out of disk space and that I need to free some up. However, I can't seem to increase the disk size because I have snapshots on the disk. When I try to delete all my snapshots, it won't let me. When I check out the disk space on my Windows 7 virtual disk, I have like 80GB of a 128GB virtual disk, so I don't know why I would be getting out of disk space errors now. I recently had a Windows 7 automatic update installed and I wonder if it has anything to do with that. Anyone have any thoughts on this?