Hi BryanC,
I understand how easy it is to misplace a product key. There are a few ways you can recover it depending on how you originally purchased Windows. If you bought it digitally from the Microsoft Store, you can sign in at https://account.microsoft.com/services using the same Microsoft account you used at purchase. The product key or digital license info will be listed there.
If your PC came pre-installed with Windows, the key is usually embedded in the device’s firmware (UEFI/BIOS). In that case, Windows will automatically activate once installed, and you won’t need to type the key manually. For retail purchases from authorized resellers, check your email inbox or order history for the original receipt, most retailers include the key in your purchase confirmation.
If none of these paths work, you can still contact Microsoft Support with your proof of purchase, and they can help verify and restore your activation rights.
If this answer helps you locate your product key or understand your next steps, please click “Accept Answer” so others can benefit as well 😊.
Jason.