OS To upgrade:- You will need Service Pack 1 (SP1) Of Windows 7 or Windows 8.1( Windows installed must be a genuine one otherwise, no update will avail you).
Minimum System Requirements For Windows 10: Compatibility Architecture: 32Bit(x86)/64 Bit(圆4).Type of Setup: Offline Installer/Full Standalone Setup:.Name of the software: Windows 10 Technical overview available in 32 bit and 64-bit versions with English mainstream language.