Here are the instructions to carry along your Windows Product Key to another computer. The laws vary on OEM so feel free to try it at your own risk.
You have to be signed as an administrator and at the cmd prompt type "slmgr /dlv" then uninstall the product key using the /upk switch. If everything is done correctly you should get the window script that the product key was installed correctly.
for more instructions follow this link
You have to be signed as an administrator and at the cmd prompt type "slmgr /dlv" then uninstall the product key using the /upk switch. If everything is done correctly you should get the window script that the product key was installed correctly.
for more instructions follow this link
