Because Microsoft doesn't sell them, you’ll have to look toward third-party retailers or second-hand markets:

: Some authorized retailers may still have old "boxed" stock (DVD + Key). You can check sites like Amazon or Newegg for physical copies.

Here’s a quick write-up on what you can do instead and what to watch out for: 1. Where to Look Instead

: Some "cheap" sites are fronts for malware or identity theft. 3. Check if You Already Have a Key

Be extremely cautious when buying "key-only" deals online. Many cheap keys are:

: Intended for businesses, these keys can be deactivated by Microsoft at any time if they are sold to individuals.

If you're looking to buy a Windows 7 key directly from Microsoft, the short answer is that . Since Windows 7 reached its end of life and is no longer supported, the company has shifted its focus to Windows 11.