Before we go too far down the road on this.
@
DAVEY JONES,
1. What operating system did the computer come with installed?
2. You have a supposed retail Windows 10 Product Key. Where did you purchase this product key from?
3. @
Superfly is 100% genuine and is THE Winodws 10 licensing expert here on Tenforums - and Tenforums is very picky about what it allows on this forum. If there is a hint of anything shady in any post any one of large number of regular members or moderator will spot it, we will report it to a moderator, and they usually remove the post and/or ban the user within hours. You will notice @
Superfly has been a member here for 2 1/2 years. You can trust him and his work posted here. SO.......
I would recommend you download his ShowkeyPlus application:
ShowKeyPlus
See what it says about product keys that are installed on your computer. Then select the option on the right to Check Product Key and see what it says about the retail product key that you purchased.
And here's a final question. Have you ever had a good, solid Windows 10 activation on that computer? If you have had a legitimate Windows 10 activation on that computer before chances are you have a digital license for Windows 10 stored on Microsoft activation servers and you don't even need a product key.
You've gotten taken badly in the past. We are here to help. We are very careful to remain reputable and we have no desire to mess with people, only help them.