Windows 10: Windows 10 showing not activated after hardware upgrades

Hello,

Last night I made a rather large upgrade to my system, Motherboard, CPU, and RAM to be specific. Everything worked fine that night, but this morning I have "Activate Windows" sitting in the bottom right corner of my screen.

Going to settings to Activate Windows gives this message:
"Activation failed because this device doesn't have a valid digital entitlement or product key. Error code 0x803F7001"

I preformed the free upgrade to windows 10 from windows 7 if this effects it any.

How would I best go about reactivating windows. I read that a clean install should solve this problem, but I would rather not wipe my HDD if at all possible,

Thanks,

:)

 

Win 10 shows NOT activated after hardware upgrade!

Thanks to those who tried to help... I appreciate everyone's input. I have finally solved the problem however. UBUNTO is a great operating system as it turns out.

 

Win 10 shows NOT activated after hardware upgrade!

The version was store bought full version, which includes transfer rights, 1 registration, Windows 7 Home. I build my own personal computers, and unfortunately, putting a pc together 1 part at a time seems to come Windows not included.

I have had that version of windows on 3 computers, 1 at a time, and before discarding a pc, I always remove the hd.

Ok and to move along, for for some reason I cannot get this pc to recognize the November updates. Windows reports that it is version 10240.

Unfortunately, after upgrading from 7 to 10, being a hurry because it was time I done this, I did not back anything up, nor did i make a iso.

To everyone, thanks for your help. I do appreciate it to all who replied to me and the countless others that need your help.

Although I was unsuccessful with the methods offered by ya'll, I have finally purchased Windows 10 full box .... Now I am just waiting on me to be in the mood to install win10 for the 3rd time....

Thanks,

Ed Davis

 

The activation fails because you have replaced the Motherboard and the MS servers do not recognise your system. Try entering your W7 product key.

 

A clean install of Windows 10 won't do it because you basically built a new computer and Microsoft never offered to give you Windows 10 for a new computer for free. Like philc43 posted, if you have the latest version of Windows 10 installed (1511, build 10586.xx), you should be able to activate it by changing the product key and then entering your Windows 7 product key.

If you don't have your Windows 7 product key you can try to obtain it (if you have not done a clean install since the upgrade from Windows 7) by running showkeyplus from this forum:

Solved Showkey - Windows 10 Forums