Hello, I am running MacOS 10.14.6 and I have an application that I run on Windows 7 under Parallels 14 and it works great. When I purchased Parallels 15 and upgraded, the application looks very poor. I would like to keep running this Windows 7 VM under Parallels 14 but I have some Linux VMs I can only run under Parallels 15. How can I install both Parallels 14 and 15 on the same Mac? Thanks!
Unfortunately, it is not possible to have both Parallels Desktop versions installed. If you try to install one version when another version is installed then the installed version will be replaced.
