Ubuntu Buzz published an article about making Linux Mint look like Windows 7.
Linux Mint with Windows 7 Theme
This article explains step by step to change GNU/Linux Mint operating system user interface to mimic W7 especially after its official support ended in this January 2020. You can practice this tutorial in Cinnamon Edition and you will install 2 types of theme plus 1 original wallpaper here. By this tutorial, I want to help people who find it's easier to migrate to Free Software if their desktop looks like their previous OS. I believe helping them are good and useful. And I hope by publishing this more people will come to help B00merang Project and others alike to develop these themes. I hope your switch from W7 to GNU/Linux goes easier, smoother, and perfect. Enjoy!Linux Mint with Windows 7 Theme