I'm having the same issue. I upgraded from windows 7 to windows 10. In the activation window I cant see the activation button but an error code 0xC004C003. I even tried to roll back to windows 7 via recovery but I get message saying some of the files were deleted and this operation is not possible.
Contacted answer desk via chat. And I was informed that my windows 7 was also blocked and they cant do anything. Either buy a windows 10 license or be stuck with non activated version of windows. So much for a free upgrade and talking about the new era of windows. I bought PC from PCWorld with pre installed windows 7. I was told by the answer desk team that even if restore my PC using windows 7 recovery disk I will not able to activate my windows 7.
I downloaded the windows 10 insider preview. I ended up having to reset my PC and i started getting an 'activate windows 10' watermark. Of course i ignored it and continued on, now with the full release of windows 10 i tried to update, turns out, i need to activate this version of windows first, but all of the keys that i have to use are useless since they have been put out of commission. Dec 28, 2018 Fix Activation Error 0xc004c003: One of the most common activation error in Windows Operating System 10 is Error 0xc004c003. Error on activating windows. Learn how to Fix Error Code 0xc004c003 in Windows 10, What is Error Code 0xc004c003 and how solve this issue using step by step tutorial with pictures. Aug 04, 2015 This thread is locked. You can follow the question or vote as helpful, but you cannot reply to this thread. Aug 08, 2018 Press Windows Key + Ito open the Settings app and go to Update & Security section. Navigate to Activation section in the left pane and choose Change the product key from the right pane. Now enter the product key and click Next.
I'm really appalled and disappointed at the service I received and at the idea either pay up or f*** off. Rang Microsoft UK office but waiting times are crazy. I think I'm going to end up chucking my PC out of the window.
Mr. Gates always talk about doing so much poor people yet the Microsoft corporate greed continues. It will be helpful if some one can provide email of Microsoft CEO.