Yup. Its active now after using neosmart to get the 25 digit key from the BIOS. i just tried out showkeyplus and it works great too.

Oh in my case it wasnt an upgrade. Laptop was preinstalled with windows 10. I wanted to revert to factory settings and got the Error code 0xC004C003.

I just spent the last 24 hours trying to figure this out as well. Tried to reinstall Windows 3 times, but same result. I think the problem is when reinstalling, windows picks up the wrong key. It...