I am having a Acer aspire laptop, this is running with windows 7OS. The machine was working fine till the last date, but there is problem occurred while I was tried to plug my 4GB flash pen drive into the machine. After plug in it flashes a message that the USB device is not detected , but along with this also I checked in the background of the machine and found that many of the instances are running over there. If i tried to disable that one then the machine completely hangs for few minute. What should I do to resolve this problem?
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