How to Activate Parallels Desktop for Mac?
A. Activating with a full / trial key To activate Parallels Desktop, please: Open Parallels Desktop application Choose the “Activate Product…” option from the Help menu and insert your activation key in the activation form B. Activating with an Upgrade key To activate Parallels Desktop, please: Open Parallels Desktop application Choose the “Activate Product…” option from the Help menu and insert your Upgrade activation key in the activation form. After your Upgrade key has been accepted you would be prompted to enter your previous version activation key. NOTE: Please make sure the previous version key you enter is actually a FULL key, not an UPGRADE one.