Low-cost windows are available.
Low-cost windows are available.
I don’t know of any place where you can buy Windows 7, 8.1 or 10 for that low price. Those versions are usually sold through official retailers or at discounted rates from refurbished stores.
Search for it and you might find all versions for around 35 dollars.
Purchase a key from a reliable person and then obtain the ISO file from Microsoft's site.