Windows 10: Help! Can't activate windows 11 pro! Error code: 0XC004C003 after reinstalling

Discus and support Help! Can't activate windows 11 pro! Error code: 0XC004C003 after reinstalling in Windows 10 Gaming to solve the problem; Reinstalled windows 11 Pro and now it wont activate. Error code : 0XC004C003. When I ran troubleshoot.. it failed and I received a message saying “ It... Discussion in 'Windows 10 Gaming' started by Sarabears, Jun 3, 2024.

  1. SARABEARS
    Sarabears Win User

    Help! Can't activate windows 11 pro! Error code: 0XC004C003 after reinstalling


    Reinstalled windows 11 Pro and now it wont activate. Error code : 0XC004C003. When I ran troubleshoot.. it failed and I received a message saying “ It looks like the hardware on this device has changed. Make sure you’re connected to the Internet and try again later. 0XC0EA00A but I am connected to the Internet! Any help would be greatly appreciate! Thanks in advance!

    :)
     
    Sarabears, Jun 3, 2024
    #1
  2. LUSI SARAH TAMPUBOLON
    Lusi Sarah Tampubolon Win User

    help me Windows 11 Activation Error code: 0xC004C003

    help me Windows 11 Activation Error code: 0xC004C003
     
    Lusi Sarah Tampubolon, Jun 3, 2024
    #2
  3. SCOTTARCHER07
    scottarcher07 Win User
    Windows 11 Activation Error code: 0xC004C003

    I just paid to upgrade my "Windows 11 Home" to "Windows 11 Pro" via the microsoft app store. However, after installation and restarts, the activation isn't working. I'm receiving error code: 0xC004C003. Also it says "Windows 11 Enterprise" at the top of the activation settings screen not "Windows 11 Pro" for some reason. I have the receipt but can't find any way to contact an actual microsoft support human. Any help would be appreciated.
     
    scottarcher07, Jun 3, 2024
    #3
  4. FRUSWINUSER
    fruswinuser Win User

    Help! Can't activate windows 11 pro! Error code: 0XC004C003 after reinstalling

    Activation fails Error code: 0xC004C003


    I'm experiencing the same problem like you, upgraded my windows 7 professional PC since july 29th and can't activate it.
    Product key blocked. Error code: 0xC004C003, several calls to microsoft haven't helped all i keep getting from the agents on phone is to wait 24-48 hours.
    It will be two weeks on 12th august still no resolution by microsoft
     
    fruswinuser, Jun 3, 2024
    #4
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Help! Can't activate windows 11 pro! Error code: 0XC004C003 after reinstalling

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