OK start again. I have been running Parallels 15 (upgraded from P 11) on my Mac Book Air for 3 years. Because the Mac book now runs Linux as the only operating system I need to re-install Parallels 15 on my other Mac. (running Sierra). I have tried several things without results.. I have copied the Parallels from my mac backup to the new machine and applied the license key I have on record for the upgrade. It won't accept the key. I have installed the legacy version P11 and applied the key I received with the purchase. Won't accept the key. I believe I purchased a a standard version which is permanent. I enclose the files which I lifted from the Parallels site after logging into my account. How can I solve this problem. I only need windows for one bit of software that allows me to put my family tree on the web. My main operating system is Linux but I have a Mac running OS SIerra. Regards, Rein Mann
