Finding your Windows 10 product key isn't rocket science! Use simple tools, the registry, or your purchase details to recover it effortlessly. Here’s how.

Your Windows 10 product key is a special receipt that shows you have an "activated" copy of Windows. Every Windows computer has its own unique 25-character product key, and it's formatted like ...

Your Windows 10 product key may be necessary to unlock all features -- but it's not easy to find. Here's where to look for the product key (even if it's lost).

The best Windows 10 product key finder of 2025 in full: Why you can trust TechRadar We spend hours testing every product or service we review, so you can be sure you’re buying the best. Find out ...

Since Windows 10 turned out to not be “the last version of Windows” after all, the need to know your Product Key has reared its head once again, and many people are finding that either their ...

Upgrade to Windows 10 Pro for $69.99, then Upgrade to 11 Pro for Free Right now in our PCWorld Software store you can buy a Windows 10 Pro license for just $69.99, 65% off its typical price of ...

You can now enter your Windows 8 Pro key into your Windows 10 Pro system and it will activate. The way to do this is as follows: Open Settings > Update & Security Activation Change Product key.

If you don’t already have a Windows 10 Pro product key, you can purchase a one-time upgrade from the built-in Microsoft Store in Windows. Simply click the Go to the Store link to open the ...

When you use the free upgrade to Windows 10 or pay for a digital retail version, you don’t get a product key. Instead, your computer uses what Microsoft calls a digital entitlement.

1. Product Key. If you got your Windows 10 from an OEM (Original Equipment Manufacturer), i.e., your computer came pre-installed with Windows 10, or if you purchased its copy from Microsoft, you ...