Windows 10: What do the different types of Microsoft Product Keys mean?

Many software programs at the time of installation require users to enter a Product […]

This article What do the different types of Microsoft Product Keys mean? first appeared on TheWindowsClub.com.

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type key product

[table][tr][td]0xC004E003[/td][td]The Software Licensing Service reported that license evaluation failed.[/td][/tr][/table]

If you received one of the error codes in this list, go to method C.

Method C: Use the "Change product key" feature to enter your product key again

This method is rated: Easy.

If you were directed to this method, you have the correct product key, but you have to try entering it again to reactivate Windows. To do this, follow these steps:

1. Click Start
   
   
   
   , click Computer, and then click System properties on the toolbar.
2. In the Windows activation section, click the Change product key. If you are prompted for an administrator password or for confirmation, type your password, or click
   Continue.
3. In the Product key box, type the product key, and then click
   Next.
   
   Note Use your original product key.
4. Follow the steps in the Windows Activation Wizard to complete the activation process.

If this method worked, you are finished.

If this method did not work for you, go to method G.

Etc>

List of Activation error codes and what to do about them:

Error message when you try to activate Windows 7 or Windows Vista:
"An error has occurred"

Contact Microsoft:

The COA sticker, which has the Product Key on it, is either on the underside of the Laptop or in the Battery Compartment.

With a Desktop it is either on the side, rear or top of the Computer Case.



Activate Windows 7 or Windows 8.1 - Windows Help - Microsoft Support

When you begin activation, Windows will try to use your Internet connection to activate online. If you have problems activating online, you can activate using the phone.

___________________________________________________

If you have to use Phone Activation, read this detailed information about using that method:

"How to Activate Windows 7 by Phone"

Activate Windows 7 by Phone - Windows 7 Help Forums

_________________________________________________

If you have problems using that method contact Microsoft Support:

To contact Microsoft Support:

Contact support

http://windows.microsoft.com/en-us/windows/contact-support

Also:
https://partner.support.services.microsoft.com/en-au/contact/menu/software/windows/setup/

Cheers.

 

Convert a Windows 8pro product key to a Windows 10pro produkt key

Hi Andre,

Thank you for contacting Microsoft community.

I suggest you to Uninstall the license using the following steps.

• Press Windows key + X
• Click Command Prompt (Admin)
• At the command prompt, type: slmgr.vbs -upk
• Press Enter, this will uninstall the product key from the computer.

Further on, install Windows 8.1 activate the copy with the product key on the new machine. Then again upgrade the same to Windows 10 using Window Update or Media Creation Tool.

Hope this information was helpful and do let us know if you need further assistance. We will be glad to assist.

 

Where is my Product Key if I want to re-install?


Like davidhk said. But if you really want to see your windows key, I would suggest Belarc advisor. It will give you some useful information about your system, product keys of your software is among them (not only Microsoft, you will have listed most of your keys).