I never tried to activate Vista, I went ahead and installed windows 8, works very well. Boots quickly and with the resolution tool found in the forum here, you can change the resolution to use the metro side and runs well. I can see my ATT SIM and surf via the windows 8 side as well. Pleased with the device. I upgraded the ram to 2 GB and inserted a 64 GB SSD I had lying around. All is good.