i got 2 friends that has recently purchase hptuners, i had the software installed on my laptop using first friend key. now i need to use the 2nd friend's hp cable, but it is telling me that i have a invalid key. i tried unstalling the software and also deleted everything that i can find in the registery with the name hp tuners then reinstalled the software, again it doesn't take me to that enter a valid key page when you first install hptuners software. does anyone know how i can switch the registation key? thanks
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