How can I check my current product key?

I bought 2 copies of Windows 7 Ultimate. One to install on my Mac and the other to upgrade a new PC. I've already activated a copy, but I don't remember which. When I do the activation and I accidentally put in the wrong PK Microsoft tell me that it is already activated?

I bought 2 copies of Windows 7 Ultimate. One to install on my Mac and the other to upgrade a new PC. I've already activated a copy, but I don't remember which. When I do the activation and I accidentally put in the wrong PK Microsoft tell me that it is already activated?

Click Start, type: cmd

Right-click on CMD

Click on run as administrator

At the command prompt, type the following command:

slmgr - dli

Press enter on your keyboard

This will reveal the key to partial product that give a clue. Compare it with the keys that you have and it will confirm which copy is in use.

Tags: Windows

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