Monday, August 9, 2010

Activation error code 0xC004B100 on Windows 7, Windows Server 2008 and Windows Vista-based computers

Error code 0xC004B100

Symptom

When you try to use a MAK to activate one or more computers, you may receive the following error message:
0xC004B100
The activation server determined that the computer could not be activated.

Cause

This issue may occur if the MAK is unsupported.

Workaround

To troubleshoot this issue, verify that the MAK that is used is the MAK that was provided by Microsoft. To verify that the MAK is valid, contact the Product Activation Call Center.

Solution:
Type slmgr.vbs –upk command to clear all product key that are present on the computer. For example, these may include the Multiple Activation Key (MAK) and the Key Management Service (KMS) key.
After you run the slmgr.vbs –upk command, you may decide to run theslmgr.vbs – dli command or the slmgr.vbs – dlv command to display the Windows Vista licensing information. However, no result is returned in this situation. Additionally, you may receive the following error message when you check the Windows activation information:

This copy of Windows is not activated. Click here to activate Windows now.
Finally, when you restart the computer, you may be prompted to insert a product key. In this situation, Windows Vista may enter reduced functionality mode.

To resolve this problem, use one of the following methods.

Method 1
  1. In the Start Search box, type command prompt, right-click Command Prompt, and then click Run as administrator.
  2. In the Administrator: Command Prompt window, type a command that resembles the following, and then press ENTER:
    cscript c:\windows\system32\slmgr.vbs -ipk {ProductKey}
    Note If your organization uses a KMS key instead of a MAK key, use the generic KMS key that is provided in the Pid.txt file. This file is located in the \sources folder on the Windows Vista installation DVD.
  3. Type a command that resembles the following, and then press ENTER:
    cscript c:\windows\system32\slmgr.vbs -ato
Method 2
  1. Click the error message that is mentioned in the "Symptoms" section.
  2. Type the product key, and then follow the instructions to activate the product key.
Method 3
  1. Restart the computer.
  2. Log on to the computer. The Windows Activation window will appear.
  3. Type the product key, and then follow the instructions to activate the product key.

12 comments:

  1. Just what I needed! Worked flawlessly. Thank you!

    ReplyDelete
  2. disk crash, couldn't find original install disk, bit the bullet and actually bought new Windows 7 from Microcenter. THEN it claims it can activate!
    Removed and readded the product key following your instructions in step 1 above - now activation successful!

    Thanks so much!

    ReplyDelete
  3. Thank you so much! Fixed! These things can be so frustrating! I just started with Method 1, step 1, then entered the command "slmgr.vbs –upk", and then restarted my computer. On restart, it asked me for my activation key, and bing! Solved.

    ReplyDelete
  4. THX al lot, that worked on my Windows Server 2016 Standard !!
    After complex converting-procedure from Evaluation to Standard (because it was a productive dc before converting;) activation came with 0xc004b100. This helps perfect !!!

    ReplyDelete
  5. Thank you very much for this solution

    ReplyDelete
  6. This comment has been removed by the author.

    ReplyDelete
  7. If you have facing problems related with Microsoft office Error Code 0X80000008 ,We have experts of technician who can fix and resolve your windows registry and office issues easily.We Microsoft USA Support is always ready to help you.
    READ MORE :- http://www.microsoftusasupport.com/blog/fix-microsoft-office-error-code-0x80000008/

    ReplyDelete
  8. I hit the same issue on windows server 2016 and this worked great! Thank you

    ReplyDelete