If you want it to look like Windows 7 you can still get a free Windows 10 upgrade. Go to the Microsoft website, search for download windows 10. Start the install and tell it you want to upgrade an existing system. You then download it and launch it. It’s free if you are upgrading an existing windows installation (even Windows XP). If you want a clean install then you need to buy a license, otherwise it just works for free.
There is the 5 or 6 hours of cycling through every update from 2016 to now, but when it’s done it’s done and free and it self activates.
I’m pretty sure the idea is to get away from Microsoft Windows, especially Win 10... :)