Unhappy HELP - device driver not successfully installed?

Hi

I have been trying to fix this problem for hours. I have searched the forum etc trying to find resolution but cannot.

I soft bricked my phone during the recent ota update and was able to fix it using odin.

I was trying to install the update via mini kies but running into a problem

When I plug my phone via usb my computer won't recognize my phone. I keep getting an error saying "usb device not recognized."

I tried uninstalling all of my usb root drivers and let them all reinstall. However when I plug my vibrant in, it says "device driver was not successfully installed"

I don't know what else to do. Can anyone help? Thanks.