You should always keep your Windows 8 product key noted somewhere so when you do a fresh-install, you can easily find it and enter it into the key field. But once you’ve done the installation, there’s no way to find out the key on your PC. However, there’s a simple workaround that lets you see the product key of your Windows 8. Here’s how:
1. Key Finder
1. Download the Key Finder utility and place it on your Desktop.
2. Double-click on the Key Finder executable file and follow the instructions to install it.
3. Once installed, launch it on your PC.
4. The first screen will show you your Windows 8 Product Key.
5. You’re done!
Great! Now note it down somewhere you think is safe place, so you can find and use it whenever you want.