Diagnose your USB problems
USB keys that do not appear to be recognized?General malfunctioning USB ports?To understand precisely what is happening on your USB ports and what the system will recognize or not recognize there is a free tool handy: USBDeview ...
USBDeview is a small utility that displays a list of all USB devices currently connected or who have already been connected to your PC. For each device, the software displays useful information to help determine whether the device is well recognized, if fully recognized and its drivers are installed.The information it delivers also easier to find on the Internet drivers.
Download the software USBDeview by following this link.
Unpack the archive into a folder that you named "USBdeview"
The program requires no installation. It runs with a double-click. Under Vista, it is advisable to run the software by clicking the right button and selecting "Run as administrator".
From the start, the software displays a grid with multiple columns.Each row of the grid is a USB device currently connected or have already been connected to the PC.
The Options menu lets you specify if you want to see:
The columns give information on various USB devices to your computer.You must specifically monitor the following columns:
In case of trouble with USB devices, for example, which appears in error and does not call its driver, try the following:
Select the device from the list
In the event of widespread problems on USB connections, if your PC no longer recognize any USB device, try the following:
re: Diagnose your USB problems
Connecting To Remote Computer
The following command-line options allows you to connect to remote computers. You must login to the remote computer with admin user in order to use these options
USBDeview.exe /remote MyComp
USBDeview.exe /remotefile "c:tempcomp.txt"
Stop/Disconnect Command-Line Options
You don't have to specify the whole name or description. You can also specify only a part of the name or description string, and USBDeview will identify it. For example, If the device name is 'Kingston DataTraveler 2.0', you can simply put 'kingston' or 'DataTraveler' in the device name parameter, and USBDeview will disconnect the right device.
If you want that a message/balloon will be displayed after the device is disconnected, add the '/showmsg' parameter. (Windows 2000 displays a message-box, Windows XP displays a balloon)
If you want to disconnect a device in a remote computer, specify the remote computer name, with prefix. You must login to the remote computer with admin rights in order to do that.
USBDeview.exe /stop /showmsg "DVD RW"
USBDeview.exe /stop "DataTraveler"
USBDeview.exe /stop comp01 "SanDisk Cruzer"
USBDeview.exe /stop_by_serial ea051261
USBDeview.exe /stop_by_serial /showmsg 876534513
USBDeview.exe /stop_by_drive g:
USBDeview.exe /stop_by_drive /showmsg f:
USBDeview.exe /stop_by_drive /showmsg comp02 t:
Save Command-Line Options
/stext - Save the list of all USB devices into a regular text file.
/stab - Save the list of all USB devices into a tab-delimited text file.
/stabular - Save the list of all USB devices into a tabular text file.
/shtml - Save the list of all USB devices into HTML file (Horizontal).
/sverhtml - Save the list of all USB devices into HTML file (Vertical).
/sxml - Save the list of all USB devices to XML file.
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