Activation fails Error code: 0xC004C003

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  1. Posts : 558
    Windows 10
       #21

    Word Man said:
    Sorry, my bad typo, should have read: slmgr /upk

    Corrected type in prior post.

    Don't know what the error code means but here it is:
    Attached Thumbnails Attached Thumbnails Activation fails Error code: 0xC004C003-screenshot-4-.png  
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  2. Posts : 1,567
    Windows 10 Pro
       #22

    fredc said:
    Don't know what the error code means but here it is:
    OK, well it's out of my depth at this point. Short of redoing the clean install and never attempting any product key during or after the install, I would look to more expert members here to give guidance. Sorry I couldn't help more at the moment.
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  3. Posts : 3
    Android
       #23

    I have the exact same error. In place upgrade from a factory Windows 8 x64, then a clean install of window 10 home x64. Refused to activate, has been 3 days now. I noticed in my Microsoft account it's showing devices Windows 10 core twice for the same laptop
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  4. Posts : 187
    Windows 10 Pro
       #24

    Jasondean said:
    I have the exact same error. In place upgrade from a factory Windows 8 x64, then a clean install of window 10 home x64. Refused to activate, has been 3 days now. I noticed in my Microsoft account it's showing devices Windows 10 core twice for the same laptop
    You can't legally upgrade Windows 8 x64. You do need to have Windows 8.1 x64 installed before you do the upgrade.

    Windows 10 can only upgrade Windows 7 sp1, and Windows 8.1.

    Well, that's what Microsoft mentions everywhere. Are you sure your upgrade was activated?
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  5. Posts : 3
    Android
       #25

    Yes I left out some details Windows 8.1 fully updated and activated, in place upgrade and successful activation to window 10, media creation Windows 10 DVD, clean install, now toshiba satellite won't activate the clean install. Tried every suggestion I've seen, thanks.
    Last edited by Jasondean; 21 Aug 2015 at 15:30. Reason: Clarification
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  6. Posts : 187
    Windows 10 Pro
       #26

    Okay, I just wanted to be sure of it.

    I'm currently typing this on a Toshiba Satellite (an old L40), and everything went fine for me. Although, I did have a little problem activating because the servers were so busy. However, I managed to do it by typing "slmgr /ato" at the command prompt, I had to do it 5 times before it activated my Windows copy.

    Although, I have to say, I also didn't use the normal upgrade procedure on my systems. The moment Windows 10 came out, I downloaded the ISO files and then created an USB stick with it. With this stick, I did the upgrade by running setup.exe, and when it was done, and my laptop crashed, which I was afraid of it would, I did a clean install. And from then on, it has been running very nicely. No BSODs anymore, which I had during the past few months with Windows 8.1.

    BTW, I didn't do a clean install on all my systems, or those of my friends. But on those where I did it, I did it always like mentioned above, and it worked like a charm.

    All of them managed to get activated.
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  7. Posts : 17,266
    Windows 11 Pro
       #27

    Rudy Mas said:
    You can't legally upgrade Windows 8 x64. You do need to have Windows 8.1 x64 installed before you do the upgrade.

    Windows 10 can only upgrade Windows 7 sp1, and Windows 8.1.

    Well, that's what Microsoft mentions everywhere. Are you sure your upgrade was activated?
    That is not true at all. Once again....Windows 8.1 or Windows 7 SP 1 is required ONLY for upgrading via the Windows Update method. Non-SP1 Windows 7 and Windows 8.0 can be upgraded using the Media Creation Tool, "Upgrade this PC now" option (and also from the ISO).
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  8. Posts : 558
    Windows 10
       #28

    Word Man said:
    OK, well it's out of my depth at this point. Short of redoing the clean install and never attempting any product key during or after the install, I would look to more expert members here to give guidance. Sorry I couldn't help more at the moment.

    Thank you so much for your help Sir, really appreciate it . Still not having any luck and I see another member is dealing with the same thing so at least I know the problem is legit , we could both be crazy but I like to think the former is true.
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  9. Posts : 41
    Windows 10 pro
       #29

    fredc said:
    Thank you so much for your help Sir, really appreciate it . Still not having any luck and I see another member is dealing with the same thing so at least I know the problem is legit , we could both be crazy but I like to think the former is true.
    Oh the problem is still there right ? Mind Resetting your Windows 10. Might just solve the issue.

    Or Install windows 8 or 8.1 or 7 again (whatever OS you have Currently). Then Upgrade to windows 10.

    Its time Consuming but you can try it if you like.
      My Computer


  10. Posts : 558
    Windows 10
       #30

    Windows10users said:
    Oh the problem is still there right ? Mind Resetting your Windows 10. Might just solve the issue.

    Or Install windows 8 or 8.1 or 7 again (whatever OS you have Currently). Then Upgrade to windows 10.

    Its time Consuming but you can try it if you like.
    I tried a reset , didn't work unfortunately , i already did a clean install twice and reset it once and it still won't activate . I deleted all my Win 7 stuff since the first Win 10 install said "permanently activated" .

    The only way for me to get back 7 is use a system image that i already used to upgrade to 10 for a second time since during a Win 10 refresh something went wrong and it got into a never ending loop and stated no boot record found .

    I am currently using the second Win 10 upgrade i did which was from the Windows 7 image . It won't activate

    Microsoft has said it could take a few days .
      My Computer


 

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