Hello guys, I am having a Acer aspire laptop with windows 7OS. The machine was performing fine past few days, but there is issue happened while I was attempting to plug my 4GB flash pen drive into the machine.It flashes a message that the USB device is not found , but with this also I checked in the background of the machine and found that various instances are running over there. If I attempt to disable that one then the machine entirely hangs for some time . Don't know that might the reason. Please suggest me so that i can fix this.



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