Windows 10: Do I still need Win 10 activation code during reinstallation on the same PC ?

Hi,



I have two PC which was upgraded free from Win 7 Pro to Win 210 Pro, If in the event I need to reinstall the Win 10 Pro OS, do I need to enter the activation code to activate ? I have the Window 10 Account is the account remembering the previous activation code ?



In these two case Is the Win 10 Pro Activation code the same as Win 7 Pro code that was at the PC's label ?



Thanks



Low

:)

 

Windows 10 will not activate Error code 0x803F7001

Possibly there can be the problem with Microsoft activation Server, so your Windows 10 is not activated. In this scenario, you need to wait and verify if it is the issue from Microsoft’s side. But if you are getting error code 0x803f7001, you can also try these steps:

1. Open Settings app. Then go to Update and security > Activation screen > Change product.
2. Type your Windows edition product key and click Next.
3. You’ll get We couldn’t activate Windows error message.
4. Retry steps 1-3 then type your 25-characters unique product key.
5. Wait for the process to complete, Windows 10 is activated.

Hope something helps this problem

 

Windows 10 will not activate Error code 0x803F7001

thanks
I activated my Windows 10 from product key Windows 7

 

win 10 activation fail code 70003c

Hi Shantanubandyopadhyay,

We appreciate your interest in Windows 10.

Before proceeding, we need more information to help you better.

• Have you installed Windows 10 through Windows update/ISO file?
• Which edition of Windows 10 is installed on your computer?

I suggest you to refer the below article and check if it help to activate the Windows 10.

Why can't I activate Windows 10?

http://windows.microsoft.com/en-us/windows-10/why-activate-windows-10

I hope the above information helps.

Thank you.