cannot reinstall drivers

view story

http://forum.xda-developers.com – Because I was inexperienced in rooting, I had my friend do it the first time. Thing is, I'm not happy with the root because my battery life is drained even worse and I can no longer turn off my phone without first turning it on, which reboots it, and then holding the power button for 5 seconds to shut it down. Either that, or removing the battery to turn it off. I remember clearly that we had to uninstall the drivers, which I'm thinking was a wrong step. Here's my problem. Even after having kies reinstall my drivers through troubleshooting, it still says on my computer, "Device d (HowTos)