Finding out my Windows 7 Activation Key

[GoogalyMoogaly]

Hi,

I've got 2 identical versions of Win7, they both legal and I have the Activation Keys for both.
However one is being used and one isn't. I'm currently building a 2nd PC and wanted to use the other copy on there, so need to know which key is used (so I can use the other one).

Is there an easy way to find out which Key I'm already using?
I don't even need the whole key, just enough so I can identify it.

I'm a little nervous to use any 3rd party apps, but I'm probably just being paranoid...

Thanks.

 

[GoogalyMoogaly]

magic jellybean...

also technically if they are oem versions you have to buy another one anyway!

They're both Retail versions, did that on purpose!

Magic Jellybean it is then...

 

[GoogalyMoogaly]

...and it turns out that my (slightly educated guess) guess was correct...

Still, at least now I'm sure.

Thanks guys.