Whether you want to connect to a different wireless network or are just in the mood to tinker with a new app, the Settings charm is your first stop for all things settings–related.
You'll find settings for the app you're in, plus a few frequent PC settings—network connection, volume, brightness, notifications, power, and language. The PC settings are the same, no matter where you are in Windows, but the app settings are different in every app.
If you don't find what you're looking for in the Settings charm, tap or click Change PC settings. You can personalize the Start and lock screens, customize the Search and Share charms, add a device, change your privacy settings, and more.