Windows 7 was the primary OS for the N550. Intel provides official 32-bit drivers for this version. Intel Download Center.

: There are no official Windows 10 drivers for the GMA 3150. While Windows 10 may install a "Microsoft Basic Display Adapter" or a generic WDDM 1.0 driver, performance will be limited, and advanced features like hardware acceleration may not work correctly. Automated Updates : You can use the Intel Driver & Support Assistant

Technically, the Atom N550 is a 64-bit capable processor . However, just because the CPU can do it doesn't mean your BIOS or chipset will cooperate. Many manufacturers locked these netbooks to 32-bit operation to save on costs and complexity . Even if you manage to boot a 64-bit OS, finding a 64-bit version of the GMA 3150 driver for anything newer than Windows Vista is nearly impossible . The "Secret Sauce": Is There a Fix?