The "PC settings" screen
This screen lets you customize how the most important features of Windows 8 work, including app notifications, search preferences, privacy options and more. The settings are all straightforward and self-explanatory. Just click the one you want to change and get to work.
Go to the Personalize section, for example, to change your account picture and the background images for your lock screen and Start screen, and choose which Windows 8 apps should deliver information to the lock screen.