Beyond just "the key," getting the most out of your setup involves technical nuances that competitive tools like VMware or UTM also handle. For example, Parallels offers unique that only backs up changes (snapshots) rather than the entire 50GB virtual disk every time, saving significant storage space.
: If you face activation errors like 0xC004C008 (key already in use), you may need to use Microsoft's phone activation to verify that the license is being moved from an old device to your new virtual machine. Optimizing Your Setup parallel desktop key