Sometimes when we are plugging into the USB port USB flashkdisk notification will appear USB Device Not Recognized. Not only with the flash, sometimes also appears when plugging in the cable cellphones, cameras
, modems
and other - that is associated with a USB port.
Windows 7 considers your peripherals such malfunction (fail to function) so that issuing the notification. Now how can I fix this?
Follow these guidelines:
Step 1:
Click Start and type and run Devmgmt.msc, and then will open Device Management. Select your computer as a location for doing the scanning hardware. Right click on Computer
Step 2:
Click Start, type and run Devmgmt.msc, Device Management window opens. Select the USB Root as in the picture below, right click on the message contained Unknown USB Device
Select properties from the menu, right click and select Power Management tab. Click to remove "Allow the computer to turn off this device to save power" check box that appears, then click OK. Now from the Actions menu, click Scan for hardware changes as referred to in the step 1.Windows will begin scanning your USB device again.
Step 3:
If you still experience the problem, turn off the computer, disconnect the USB cable, remove the battery (for laptops
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