Windows 10 is designed to go with you seamlessly from one device to another. It's the fastest and responsive operating system yet to date. You also get free chat or phone support from real people. With Windows 10, it's easier to do greater things.
Fully installed version of Windows 10 Pro
Go to www.microsoft.com/en-gb/software-download/windows10
Follow instructions on how to "Create Windows 10 installation media"
Download the tool and install Windows 10 on your PC
Required Processor: 1 GHz processor or faster
Required Memory: 1 GB RAM for 32-bit; 2 GB for 64-bit
Required Hard Disk Space: Up to 20 GB available hard disk space
Required video card: 800 x 600 screen resolution or higher. DirectX® 9 graphics processor with WDDM driver
Required connectivity: Internet access (fees may apply)
Other System Requirements: Microsoft account required for some features. Watching DVDs requires separate playback software
Additional system requirements: You must accept the enclosed License Terms, also at microsoft.com/useterms
Activation required • Single license • 32 & 64-bits on USB 3.0