You will likely see websites offering Windows 7 keys for $5–$20. Use extreme caution:
Buying an official Windows 7 license today is difficult because Microsoft officially ended sales and support years ago. However, if you specifically need it for legacy software or older hardware, 1. Check for an Existing OEM Key how to buy windows 7 license
This allows you to legally use Windows 7 Pro instead of the newer version. You will likely see websites offering Windows 7
: Look for sellers with high ratings and photos of the actual physical product rather than just a stock image of a digital key. Check for an Existing OEM Key This allows
: Modern processors (Intel 7th Gen/AMD Ryzen and newer) do not officially support Windows 7 and may require complex workarounds to install drivers.
: Look for a Certificate of Authenticity (COA) sticker on the bottom of your laptop or the back of your desktop tower. It contains a 25-character product key.