Once you have a valid key, you can find official download links for legacy versions on the Parallels Knowledge Base . Key Features of Version 10
Authorized online resellers like Amazon or eBay often have legacy "boxed" versions or unused product keys for sale. buy parallels desktop 10
If you are specifically looking for version 10, it was highly regarded for several "firsts" in Mac-Windows integration: Review: Parallels Desktop 10 - The IT Nerd Once you have a valid key, you can
You can purchase a current Parallels Desktop subscription, which grants you the right to activate previous versions, including version 10. Once you have a valid key