How do I change from Windows 10 to Linux?

Install Rufus, open it up, and insert a flash drive that’s 2GB or larger. (If you have a fast USB 3.0 drive, all the better.) You should see it appear in the Device drop-down at the top of Rufus’ main window. Next, click the Select button next to Disk or ISO image, and choose the Linux Mint ISO you just downloaded.

How do I wipe my computer and install Linux?

Yes, and for that you’ll need to make an Ubuntu installation CD/USB (also known as Live CD/USB), and boot from it. When the desktop loads, click the Install button, and follow along, then, at stage 4 (see the guide), select “Erase disk and install Ubuntu”. That should take care of wiping the disk out completely.