Can you try this . Remove the power cord ,unplug the machine then hold the power button down for a minute or more. We're resetting the memory to be clear so that the computer has a clean clear boot . Then plug the computer back in and reboot. If this gives Joy then use a program like revo to uninstall the driver booster program . This will get it all out of your computer. Loading drivers should be done through the computers website. Second party websites or programs are not always a safe spot to get drivers from. They are also hard to completely get rid of . This is why a program like Revo uninstaller is necessary to rid the computer of it. Hope this helps