Howdy - I love to test out new tools and eagerly installed Defraggler.
The install ran with out error and the gui started up just fine.
My drives were all listed but when I started the analyze process, the computer seemed to freeze up.
I let it run for 30+ minutes but when there was no further increase in % complete, I hit stop.
That ran for 30+ minutes, but never actually stopped, so I closed the app using the x button.
Closing the application seemed to leave a process hanging on the machine that required a hard reboot to stop.
I reran after a clean boot and the same thing happened.
I'm running windows xp media center edition with, I think, all the latest service packs and critical updates.
Thanks for what appears to be a great tool