If you cannot modify the brightness level of your screen, with this tool, that becomes easier. Display Brightness is a simple utility for this purpose. It allows you to set brightness easily. Just decompress the files at any location and run Brightness.exe. An icon will be displayed on your desktop in the form of bubble, and the icon in the notification area will change in accordance with the current display brightness of your screen. It is a freeware and compatible with Windows 7, Vista and XP.