USB device not removed from Device Manager after being unplugged

I have a USB device that is not removed from the Device Manager after I unplug it. The laptop is a Samsung 700Z5B, win7 x64, updated with all MS patches, I'm not 100% sure if the BIOS is up to date, having trouble finding that info.

If I have just restarted the computer I can use my USB device just fine. From that point I can remove it once or twice, but after that it won't work again until a restart of the computer.

This seems to be the only device that is having this trouble. The hardware the USB connects to is a Moates Quarterhorse and it has an FTDI chip AFIK. I have not found anyone else having this issue with a Quarterhorse so I am thinking it might be an issue with my laptop as opposed to the Quarterhorse hardware.

Any thoughts or possible direction?

I'm not removing it the safe way for sure, I rarely have a chance to do that under normal use. This device attaches to the computer on my truck and allows me to tune the motor. So when I am driving I'll have my laptop plugged in to this device and as soon as I turn off the ignition, this device no longer has power.

I could try removing it the safe way as a test but that's not always practical.

I also have one of these FTDI Chip devices. My PC is doing the SAME thing.
Plug it in and the virtual com port is created... Removing the device changes nothing. When I shut down the PC, it WILL HANG. you cant detech any new plug and play either (hang)

Would be great if anyone ever figures this out.
Thanks

p.s. I am using a uDMX micro from DMXking.com

I have not figured out the problem but I was able to connect with a Mac that was hosting a VM of Windows in Parallels Desktop to my device. I found it strange that connecting in that manner I was able to get it to work.

For the laptop I am using an having trouble with, I wonder if that means a USB chip on the motherboard is not playing nice with drivers. I was using the same drivers in the windows VM as I use with my laptop. I know this laptop won't work and I am hoping to get a new laptop soon, hope that one will work.

Solved. I got it working.

I have an Asus notebook. I visited the Asus website and downloaded the latest BIOS. I also downloaded and installed the USB drivers from their site. These drivers are for the USB ports themselves. I also ran CCleaner from www.piriform.com/ccleanerThere is a registry scan that comes with it. I figured that if there was any unused items in the registry, it would clear it out.

So, I did do a few things. One or more of the three things fixed it.

End result is that the USB device, when plugged in makes a familiar sound and it appears in the device manager. When I unplug it, I hear the same sound 1 second later and it is gone from the device manager. PERFECT

Hope this helps someone.

I am glad to hear that helped your situation. I had looked for all the updates I could but they just weren't making them for my lappy any longer. However, based on what you said, I hope to have better results when I do get a new lappy.