You can configure your hardware and change Boot Camp options when you’re in Windows. While viewing the Windows desktop, click the Boot Camp icon
in the system tray, then choose Boot Camp Control Panel.
If you’re viewing the Windows 8 Start screen, click Desktop to view the Windows desktop.
If you don’t see the Boot Camp icon
in the system tray, click the triangle to show hidden icons.
For more information about the Boot Camp Control Panel, open it and click Help.