It certainly does...I've been using it without a problem until the February upgrade.
The first time I tried the registry optimization post upgrade it got stuck for an hour. I shut down, an hour later re started ony to find I couldn't log into Windows. Long story short but I had to use a system image to get going again.
Tried it last week and got stuck again although it restarted fine.
And the clean up itself is to aggressive now - everythime I use it I end up having to log into everything again which is a pain as I am currently travelling ad Wifi is very slow.
Please roll this back to pre the Februaru upgrade. It was great but something is very wrong now.