Activating Windows 10 After Clean Reinstall, Can I Get Some Help?

[Windows Central Question]

Activating Windows 10 After Clean Reinstall

Hi I reinstalled windows 10 after a virus attack.I had windows 7 home basic installed from manufacturer HP(G62 Notebook).I upgraded to win 10 from that win 7(Product key TBY8T-9M28Q-BY84J-H3B88-8RH43).
I work in Qatar.Windows 7 I had on Laptop was for Middle East.But it upgraded well in to Windows 10 and worked well.
A virus attacked so I couldn't access my hard disk through Windows File explorer.I used MS-DOS.I could access internet through Chrome only.
I tried resetting but it didn't complete.Restoring didn't work.Recovery image I didn't have.
Computer sale agent didn't give me a OS cd/dvd for my laptop so i don't have the original Windows 7 original CD.But the product key sticker is there at the back of my laptop.
Any how I had to clean reinstall Windows 10.I downloaded it and reinstalled.
When reinstalling Win 10 I accidentally clicked "I don't have a product key" instead of "Skip".
So now it doesn't activate.

What should I do please?

 

[emperor_skull]

Re: Activating Windows 10 After Clean Reinstall

You May have to do another fresh install, or have you tried going to the settings app to change the product key ? With the one on the back of the machine?