Installing Windows 7 on a Windows 10 computer

[Barry]

I got a free laptop running windows 10. But, windows 10 was a pirate copy so it keeps asking for the key. 

I want to wipe it and install windows 7, but keep the files on the computer. 

I want windows 7 because the software I want to run was designed to run on windows 7. It will run on windows 10 in compatibility mode, but not on this pirate version. And I also hate windows 10 constant updates  

Ordinarily id just switch to Linux but the software I need doesn’t run on Linux.

Anybody got any solutions?

Software is some amazing tech software so if anyone has a solution I will send them a copy. 

[desertdude]

https://www.easeus.com/resource/windows-10-rollback-to-windows-7.html