Windows 7 - Usb device not recognized error

I have a laser projector, and i control it with my windows seven notebook by usb.
Problem is, sometimes by a static shock of other devices or by other causes i do not know of, the notebook suddenly refuses to work with the usb drive anymore and the projector freezes.

but here is the part i want to solve. after replugging the usb drive windows says that the usb device is not regonised.... after plugging out and waiting 2 minutes and then replug makes it work again...if i do it sooner then usally it still shits about the device not being regonised.

is there a way to fix this?

thanks.

That depends on what the real cause is... Sometimes immediately removing that specific usb connection in your Devices settings can be faster. But not a nice solution.

What makes you think static shock has something to do with causing the problem? Are you sure it is not a powersaving issue on your system? That would be the most logical reason. Or a devicedriver conflict?

all powersaving functions are off but it could be windows is so selfish it still has some power saving shit online.

static shock because i have a fog machine wich draws alot of watts, and the button to turn it on is with the ground cable.

Is that fog machine connected to the notebook?

A solution that sometimes works:

Buy an external externally powered USB hub. In other the words, the usb hub has a separate source of power and does not use the laptop for power.

no. to another outlet. and it doesnt matter if its in desame fuse box or not.

im purchased a external powered usb hub online. in the mean time is there more i can try?

Well, maybe....? What triggered me is that you say "the projector freezes". Could you be a bit more specific on what exactly happens? As I understand it, you use a usb device that controls it. What is that exactly? Do you have a wireless device which, wirelessly connected to a usb receiver on your notebook, helps you stand and go through presentations on a beamer? If that is the case (or something like it) are you sure exactly what freezes? A projector normally never does. But it could be:

• A Powerpoint-like presentation that froze
• the usb device itself froze
• the whole notebook froze
• etc

For example: have you tried going on with the presentation using the keyboard on the notebook?

its a laser projector. for lasershows. not for powerpoint.
the device just freezes. i think its because windows is not sending anything through the usb port anymore.

I understand that but what I'm trying to check is if windows itself is freezing up or if it's just the port....

just the port...