My official Parallels Desktop (6.0.11994) installation forgets the registration key. Each time I reboot my Mac (Snow Leopard, OSX 10.6.7) I have to reenter the registration key. This is quite annoying. How can I make Parallels Desktop remember the registration key?
You need to delete licenses.xml (Note: it is better to backup the file somewhere just in case) from /Library/Preferences/Parallels and restart your Mac. After restart, enter your key again one more time and check if it works now.
