Windows 7 OEM X86 X64 - 48 in 1 Support All Notebook & Pc (Windows 7 Original)Windows 7 OEM or Original Equipment Manufacturer is the operating system that is installed with that laptop or notebook brand. Models that are manufactured and installed for the product from the factory And do not have any adjustments or modifications Also known as the original for Windows 7 OEM Download with Laptop Series (X86 / X64) 48 in 1 All Edition has compiled Windows 7 for almost every version, both 32bit and 64bit. Can Update Windows to install a service pack update package (in AIO This product does not have a service pack. You can update more.)  Inside includes - Win7.OEM.laptop.series.iso (4,350,752 KB) - Windows 7 Loader v2.1.2 (1,453 KB) - Windows 7 Loader v2.1.3 (1,465 KB).