Karen got a Lenovo Yoga laptop. How does she back up her computer? Leo says that there's a utility on the machine that will enable her to make an image backup. Windows Key. Type Backup. At the very bottom, go to backup and restore for Windows and then create a system image. Then you can make an image of it to an external USB drive. Leo says to make two images. One a virgin system image, and the second after you've made it just the way you want it. Then back it up periodically to keep it up to date.