Installing Linux as Dual boot

You may want to do this to avoid issues of working with Windows

This video essentially shows the entire process:

https://www.youtube.com/watch?v=HkVMc56JHOQ

You may want to look at other sources, for example this page adds steps not shown in the video to guard against possible issues:

https://opensource.com/article/18/5/dual-boot-linux

Essentially, this page additionally created windows installation media as a back-up (I recommend, because I used it for other issues after)

Getting rid of linux:

fist start by deleting the linux partitions from within windows (the first youtube video shows how to work with partitions). Then do this

https://askubuntu.com/questions/429610/uninstall-grub-and-use-windows-bootloader