1. Deivid Steffens's Avatar
    Hello, I did a clean update to Windows 10 on my notebook and when I try to insert the product key from my previously installed Windows 7 Home Premium I get the 0xc004f050 error.
    Can't activate the OS.
    07-29-2015 05:18 PM
  2. sattanclaus's Avatar
    I have the exact same problem, and I'm upgrading from windows 7 home premium too.
    07-29-2015 06:02 PM
  3. TonyRAnderson's Avatar
    You have to upgrade first. Then you have a valid Windows 10 key. Then you can clean install and not have to enter a key at all.
    07-29-2015 07:27 PM
  4. PleasehelpmeW10's Avatar
    Same thing happened to me! Also upgrading from Windows 7 HP. I can't go back though because I deleted my OS and never set a backup... :'(
    07-29-2015 09:27 PM
  5. Deivid Steffens's Avatar
    I contacted Microsoft CallCenter and it's what Tony said.
    07-30-2015 06:22 PM
  6. Laboran's Avatar
    I did the same thing, but also inserted the windows 7 certificate using the cmd, I made a backup for it, but still no activation of windows 10. Is there anything else that we could do to activate? What will happen now, because I cant go back either, I deleted the windows.old file.
    08-07-2015 10:45 AM

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