I was given exemplary help when reinstalling Parallels by a phone adviser, and able to get back up and running with my virtual PC very quickly. I need the PC on a Mac to run a few PC-only programs (eg MS publisher). The Mac had needed a complete reinstallation of OS and my 3rd party software. What was different to some other experience? 1. Accessible by phone. 2. Understanding of what I needed to do. 3. Anticipation of the information needed, which was immediately sent by email. And, Parallels seems to run an old W7 VM better and better. Good on you.