In Windows 7, Aero effects are enabled with VGA compatibility driver via software rendering. There are no native GMA900 drivers available for Windows 8 since XDDM support is removed from this operating system. On GMA900 based laptops with Windows 7, users may experience a serious bug related to the chipset's native backlight control method failing to change brightness, resulting in the brightness becoming stuck on a particular value after driver installation. The bug did not occur when Windows 7 was initially released to the public and is commonly observed after running Windows Update. This bug also occurs in GMA3150 based laptops.