: This is the primary source for finding "New Old Stock" (sealed boxes) or used installation discs. You can find a wide variety of Microsoft Windows 7 Professional listings on eBay including both 32-bit and 64-bit versions.
: Modern processors (Intel 7th Gen or newer and AMD Ryzen) do not officially support Windows 7, and finding drivers can be extremely difficult. Microsoft Windows 7 Professional - eBay where to buy windows 7 professional
If you already have the installation media and just need a license key, several digital storefronts specialize in reselling legacy keys. : This is the primary source for finding