: 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.
You will likely see websites offering Windows 7 keys for $5–$20. Use extreme caution: how to buy windows 7 license
: Many sellers on sites like Back Market or Newegg sell older "Grade A" refurbished PCs that come with a Windows 7 Pro license pre-installed and activated. 3. Use a Windows 10/11 Key (Downgrade Rights) : Look for a Certificate of Authenticity (COA)
Since Microsoft no longer sells Windows 7, you must rely on the secondary market. how to buy windows 7 license
: Buying from untrustworthy "key doctor" sites puts your payment information at risk. Important Considerations