When a USB device such as a flash drive is plugged in, the computer does not react at all. It does not find the device nor does it show (not even as unknown) in the device list. However when I boot the computer with the device plugged in, it works fine.
IThis may be related. I have an 'Unknown Device' that periodically pops up and then disappears. I've tried many software programs & checks but nothing can identify it. I have the latest Intel chipset drivers
installed and my drivers through DriverMax are up-to-date.
I would appreciate any help.