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I have Windows 7 Business/Enterprise that are automatically configured to use KMS licensing.

How do I convert it to MAK mode licensing? In the past I did this with slmgr however I forgot the command.

  • If you just run "slmgr" without arguments it will supply you with all of the available switches. Maybe "-upk" is what you need? – Uninspired Mar 16 '11 at 0:47
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On the computer you're moving to the MAK key:

  1. From an elevated command prompt run 'slmgr /rearm', reboot
  2. Enter new key from the System Properites window. (To get to the System Properties window - Win + E, choose System Properties in the tool bar, scroll to the bottom and click 'Change product key') or Windows might prompt for activation upon reboot.

slmgr /dlv will provide you with current activation information.

  • -1 This does not solve the issue of converting from a computer in "KMS" mode to "MAC" mode. I tested this myself. – halfbit Mar 15 '11 at 18:26
  • @makerofthings - you're right, I forgot about the need to tell the machine to forget the current activation via the slmgr tool. – edusysadmin Mar 15 '11 at 23:15
  • ... let me know if you know how to use slmgr to convert to MAC mode... I can't find the switch... – halfbit Mar 16 '11 at 0:35
  • slmgr /? will give you all the commands. /rearm allows the machine to be set to a fresh activation point. – edusysadmin Mar 16 '11 at 1:08
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I know this is old, but I ran into this issue with a W2019 server. Here are the commands I used from elevated cmd prompt.

Step 1. Uninstall Key

slmgr /upk

Step 2. Clear the Key from the registry

slmgr /cpky

Step 3. Set the new Key replace the X's with your MAK key

slmgr /ipk XXXXX-XXXXX-XXXXX-XXXXX-XXXXX

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