after upgrade windows 10 cannot activate Error code: 0xC004F034

Jako said:

what about me ? is it the same ? my message is different it says windows 10 is not activated..Attachment 27573I'm afraid I won't be able to activate cause I took a key from a forum to successfully launch the upgrade from my windows 7 version because it was asking for a key...

Do you have an error code?

mrplt said:

Do you have an error code?

Yes those 2 the one in red when I try to activate and the one when I play with the cmd..

mrplt said:

Do you have an error code?

Yes this one is definetly my error code...any idea whatit means ?

I cant see any activation button through setting it was there I pressed it continuously now its gone

Muhammad said:

I cant see any activation button through setting it was there I pressed it continuously now its gone

I explained how to make it reappear above... You should close the activation window, then go to Control Panel > System and click Activate Windows one time, and the Activation page will appear with Activate button.

Jako said:

Yes this one is definetly my error code...any idea whatit means ?

You can try this. Open a command prompt, and type slmgr -ipk xxxxx-xxxxx-xxxxx-xxxxx-xxxxx (Windows 10 generic key -- you can find it on the previous page)
then type
slmgr -ato

mrplt said:

I explained how to make it reappear above... You should close the activation window, then go to Control Panel > System and click Activate Windows one time, and the Activation page will appear with Activate button.



You can try this. Open a command prompt, and type slmgr -ipk xxxxx-xxxxx-xxxxx-xxxxx-xxxxx (Windows 10 generic key -- you can find it on the previous page)
then type
slmgr -ato

Ok will try that thank you.. but what do you mean the generic key on the previous page ?

Jako said:

Ok will try that thank you.. but what do you mean the generic key on the previous page ?

Yes.

mrplt said:

That won't work because (I assume) you were using Windows 8.1 Home, and you were eligible to update to Windows 10 Home.
Changing the product key to the generic key of Windows 10 Pro won't work, as you didn't upgrade from Windows 7/8.1 Pro.

I kinda felt that won't work as well, so I went the hard way and installed w7 pro, then upgraded to w10 pro, and glad it is activated now.