2

I purchased a used MS Surface Pro on eBay. It was delivered being factory-reset and the OS is Windows 8.0. When I tried to upgrade it, it asked me to input Product Key which I don't have. I did some research and factory-reset seems to make the product key lost.

How can I upgrade it to Windows 8.1?

Thanks.

Sam

5

It's free in the Windows Store (i.e. no license required), you may need to make a Microsoft account to access it, however.

If you install through the Windows Store and are getting that message, you are likely not running an activated Windows 8 copy. The key is stored in the UEFI, so try activating from My Computer > Properties. If that fails, you may need to call.

Microsoft

If your PC is currently running Windows 8 or Windows RT, it's free to update to Windows 8.1 or Windows RT 8.1. And unlike previous updates to Windows, you'll get this update from the Windows Store.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.