In Windows 8, open the Charms menu by hovering the mouse over the top right-hand corner of the screen. Windows XP and Windows 7 don't have the Charms menu, so right-click on My Computer.
In Windows 8, choose the Settings menu option. In Windows 7 and XP, select the Properties option. It might also be called System Properties.
In Windows 8, choose PC info in the Settings menu. In Windows 7, click on Systems in the Properties window. In Windows XP, the option is called Computer.