Go to Device Manager > Display Adapters. Right-click the current adapter and select "Uninstall device."
The N550 was designed for Windows 7 Starter Edition. The official Intel drivers for this OS were the most stable, providing basic Aero glass effects and VGA-out support. intel atom n550 graphics driver
The following drivers are the standard official releases for the Intel Atom N550's GMA 3150: Windows 7 (32-Bit) : 15.12.75.50.7.2230 Release Date : October 20, 2010 : You can download this directly from the Intel Support Page for Legacy Atom Processors Windows Vista (64-Bit) : 15.12.50.4.64.2214 Release Date : September 16, 2010 : Available on the Intel Download Center Installation & Compatibility Notes Manufacturer Customizations Go to Device Manager > Display Adapters