I don't think you can on the Vortex, it's meant to help people install the drivers and use the update tool but on older phone models they didn't think about how annoying this would be...newer phones don't do this. You might try disabling autorun on windows, that may be your only option to stop it.

May I ask why you are plugging into USB so often? If it's to download photos or something like that you might look at some cloud sync services instead that sync in the background. We recently wrote a great How Do I about some of them here:
http://www.lgforum.com/how_do_is/how-...

because i charge it every day through the computer i use and it is not a very strong plug. i also use it and cant keep it tethered to my computer at all times

even if the phone is bumped or moved sometimes it will disconnect and reconnect itself and i will get the website and a folder with the phones files popping up on my screen. the only reason ive used the stupid website so far is to figure out how to stop the damn thing from popping up and i know where the folder is located and i will go to it if i need it i dont need it shooting up in front of whatever im doing at the time. im seriously considering going with another cell phone plan because this is getting so god damned annoying.

my best advice is to use a wall charger rather than your USB port for charging. It will also charge faster with wall charger which puts out 1.0A rather than your USB port which only outputs 0.5A. Like I said the newer phones don't do this and there is no way I know of to change this on the Vortex. Hopefully you can find a suitable work-around for this annoyance like a using wall charger.
Thanks for taking the time to talk to us!