One thing I dislike in my current Vista installation is how it behaves while trying to unmount USB harddrive. I have a 320 gig external drive, which serves as a storage for my backups, torrents and videos. Also I store and run different virtual machines from it.
This morning I was about to go to the office. I shut down µTorrent and clicked “Safely remove” on my drive. “This disk cannot be removed right now. I don’t know who uses it, but someone surely is.” was the response. I tried again. The same result. Hmm, maybe some program or explorer window is indeed hanging around. I double-checked all icons on a taskbar, then running processes in Task Manager. Nothing.