Windows 10 Home instead of Pro

alphanumeric said:

Do the change key but just enter your 10 Pro key. I hope that was a reputable web site you bought that key from? Normally you would be buying retail keys, sounds fishy to me, unless you bought a system builders package.

Yes, It's not a problem of key because I contacted Microsoft and they confirmed my key is valid.
Do you know which command to use to change the key once upgraded?

alphanumeric said:

What OS originally came on that PC?

Win 7 home :)

alphanumeric said:

Windows 7 doesn't use OEM embedded keys so it must be the way your installing Windows 10 that's causing 10 Home to be installed? How old is your ISO, when did you download it?

Today, from Microsoft's download page. Anyway, until I can upgrade to 10PRO with key VK7JG-NPHTM-C97JM-9MPGT-3V66T and after going to security settings and update the key with mine, that's fine !

One more question, to upgrade from Home to Pro, it's same section (Update & security) but I put VK7JG-NPHTM-C97JM-9MPGT-3V66T this time ?

alphanumeric said:

Try your key first. If it works you'll only have to do the change key once. If you use the VK7JG-NPHTM-C97JM-9MPGT-3V66T key first you'll have to d the change key twice to get activated with your key.

It doesn't work because Windows doesn't recognize the key (which is normal because it's a PRO key). However if I can upgrade to pro with the key above and after activate with mine that will solve my problem !

alphanumeric said:

VK7JG-NPHTM-C97JM-9MPGT-3V66T is also a Pro key. If you upgrade with that key you will have an un activated 10 Pro. If your key is also rejected at that point, there is no way back to Home without reinstalling.

Well, it worths trying, thanks a lot for your time and your help, I hope it might help somebody else as well !

Thanks !