Product Key Number - Uninstall and Deactivate in Windows

How to Uninstall the Product Key Number and Deactivate Vista, Windows 7, or Windows 8


   Information
This will show you how to uninstall the product key number of a local or remote Vista, Windows 7, or Windows 8 computer so it will no longer be activated by that product key and left in a unactivated (deactivated/unlicensed) state afterwards.

You will only be able to do this tutorial while logged in as an administrator.

For more details and options using the slmgr.vbs command, see: Slmgr.vbs Options

   Note
This will not return the product key to a never before activated state.

This will not permanently deactivate the product key number and prevent it from being able to be used to activate another Windows again later. This only removes the product key from the current computer leaving Windows not activated.

This will not remove the product key from Microsoft activation servers. Microsoft activation servers will still have records of all computers the product key have been activated on.


An OEM product key number is permanently tied to the motherboard of the computer it was first activated on. It can only be used to activate Windows on the exact same computer that it was first activated on.

A retail product key number can be used to activate Windows on any computer as long as the product key has been removed from any other computer first.


If you only wanted to change the product key number instead, then see:

How to Change the Product Key Number in Windows 7


EXAMPLE: Watermark that indicates Windows is not activated
NOTE: This watermark will be at the bottom right corner of your desktop above the taskbar notification area.
Unactivated_Windows_7_Watermark.jpg

Unactivated_Windows_8_Watermark.jpg

Here's How:

1. Open an elevated command prompt.

2. Do either step 3 or 4 for what computer you want to uninstall the product key on and deactivate Windows on.

3. For a Local Computer
NOTE: This would your computer.
A) In the elevated command prompt, copy and paste the command below and press enter. (see screeshot below)
slmgr.vbs /upk

Uninstall-1.jpg
B) Go to step 5.
4. For a Remote Computer
NOTE: This would be doing this from your computer (host) to a remote computer (client) on the network.

   Warning
You will only be able to do this from either a Windows 8 computer to another Windows 8 computer, Windows 7 computer to another Windows 7 computer, OR from a Vista computer to another Vista computer.

You will not be able to do this from say a Window 7 to Vista computer, or Vista to Windows 7 computer.

A) In the elevated command prompt, type the command below and press enter. (see screeshot below)

   Note

  • You would substitute Computer-Name in the command below with the computer name of the remote computer.
  • You would substitute UserName in the command below with a user account's name with required permission on the remote computer.
  • You would substitute Password in the command below with the user account's password of the remote computer.
slmgr.vbs Computer-Name UserName Password /upk

Remote.jpg
B) Continue on to step 5.
5. Click on OK. (see screeshot below)
Uninstall-2.jpg
6. The Windows on the selected computer is now in a deactivated unlicensed state with the product key number removed. You will also now have the This copy of Windows is not genuine at the bottom right corner of your desktop until activated again.

7. Every time you restart the selected computer and log in, you will be presented with an option to activate Windows until you do so. (see screeshot below)
Restart-1.jpg








A) If you Click on the Type your product key Option
  • You will be prompted to enter a valid product key number for that edition of Windows. If successful, it will activate Windows. (see screenshots below)
Restart-2.jpg

Restart-3.jpg

B) If you Click on the Ask me later Option
  • Windows will continue to startup into the user account that you logged into, but will still be in a unlicensed state until you activate Windows using step 7A at the next restart or manually activate while still in Windows.
That's it,
Shawn









 
Last edited:
Hello Amaterasu,

The word deactivate can be a bit misleading. All this does is remove the product key from the PC so that the Windows installed on the PC is no longer be activated with that product key.


If you get an upgrade copy of W7 Ultimate instead of a full copy, then you will not legally be able to use the W7 Home Premium since you are replacing it with the upgrade to Ultimate as per the EULA.

If the W7 Home Premium is an OEM copy instead of retail, then you wouldn't be able to use it's product key to activate on any other PC since it's permanently tied to the motherboard of the PC it was first activated on.

If the W7 Home Premium is a full retail copy, then yes you will be able to install and activate it on any other computer you like so long as it's not installed and activated on any other computer. If it doesn't activate online as usual, then you could activate by phone instead.

Hope this helps, :)
Shawn

ok thanks for your help Shawn :)
 

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You're most welcome. :)
 

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Hi guys,

My office recently bought Windows 7 Pro 32 bit and I did not know on how many computers it can be installed. Yesterday someone borrow the DVD and install it on non office workstation. We can't allow that kind of installation as it break our office policy. My question is, if I remove / deactivate that workstation with this tutorial, can we still use the product key on another workstation?
 

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Hello Skeith, and welcome to Seven Forums.

If it's a retail copy and not an OEM copy of Windows 7 Pro, then yes you can use the key on any computer you like so long as it's only activated on one computer at the same time and removed on any other.

If it doesn't activate online as usual, then you should be able to activate by phone.

Hope this helps, :)
Shawn
 

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There is a great reason to do this. Example: I have the windows 7 family edition 3 pack. I am about to remove the license for this older pc, and instead place ubuntu as the main OS. This will in turn free up the license so I can install it on another PC.
Edit: It worked great
 
Last edited:

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Your awesome for reading this.
Hello Andrew,

You could, but there's really no need to if you're formatting the PC. This would mostly be helpful if you say wanted to give your computer to someone, but didn't want to give them your product key or uninstall Windows. :)
 

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I'm confused... can this work by installing windows 7 on a windows XP computer, Upgrading to Windows 8 and keeping the key?
 

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I did this: slmgr.vbs /upk. How can I revert it back someone please?
Cause I need to use rearm until I can buy a new win7 home disk.

Thanks.
 

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Thanks but I have went to using Ubuntu 14.04 for the time being. I'm going to purchase
a Win10 OS disc soon.
Can you see my new thread and possibly help me with bios problem though?
Thanks.
smile.png
 

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