I think this is best done as a numbered list.

However, before I get into this: It is possible to dual-boot Ubuntu and Windows. This means that when you turn on your computer, you’ll get a menu that says “Ubuntu” and “Windows” and you can pick which one to boot into.

Also note, that while this shouldn’t erase any of your data, it might and it’s always a good idea to back up, and Timmy really likes using italics, and should probably stop.