How to Install, view, manage devices and printers in Windows 7. When you want to see all the devices connected to your computer, use one of them, or troubleshoot one that isnt working properly, open Devices and Printers.How to Install, view, manage devices and printers in Windows 7. When you want to see all the devices connected to your computer, use one of them, or troubleshoot one that isnt working properly, open Devices and Printers.