Windows 10 requires a 1 GHz or faster processor, 2 GB of RAM for the 64-bit version, and 32 GB of storage. It also requires a graphics card compatible with DirectX 9 or later.
You will receive your digital license via email immediately after your purchase.
Yes, the license is global without any geographic restriction.
The license can be used only once on a single device, but if you have linked the license with your Microsoft account, it will activate automatically when you sign in to your Microsoft account.