Zacron: I am using 7 Pro, and it does not even recognize that it is plugged in. I have tried on multiple machines, with multiple reboots of both devices.
jjsimp: Went back home for lunch and picked up my cable and mouse.
Anyways, look in device manager under the portable devices...it should show up there.
If not, you should have a yellow exclamation mark somewhere in device manager, that's probably it. Safe to right-click, click uninstall, and reboot. It should find it after that.
Attached is what mine looks like in Device Manager
Oh wait a minute there was one more step. On your android device, go into settings, under device there is the storage settings click on that...and select media device (Mtp). It should pop up in windows 7.
Mine does not show that at all... I wonder if it is the cable I am using... I'll bet that's it. I forgot that about a year ago the cable got mangled, and we ordered a replacement, but idk if it ever worked with a PC...
EDIT: Mine literally does nothing at all when plugged in, like when you plug it into a wall.