Before you can think about reinstalling Windows 8, you’ll need to ensure that you have your product key to hand. If you have downloaded the upgrade version of the operating system, this means that you will have to search through your emails to find the key that will have been sent to you.

This is not only annoying, you may also find that it is not possible if you only have one computer, or you lose access to your email account.

Windows 8 Product Key Viewer is a tool that does exactly what you would expect it to do. Fire up the app and with a second you will be provided with the product key you need to reinstall Windows. There are no fancy extras, this is an app that serves a single purpose.

The only extra to speak of is an integrated ‘copy’ button so you can easily copy the code to the clipboard and paste it into a document ready for saving and printing out.