"Computer hard disk IO device error failed to run this request" resolution

First check the mobile hard disk, to try to move another computer to see if this situation, and the normal reading, it means that the mobile device is good. If you can't read it, it's a mobile device problem. Then recommend to the Professional maintenance department to repair it. Remember to copy the important data well.

If the mobile device is normal, it may be the cause of the I/O address conflict that causes the removable hard drive to fail to read.

Solution: Boot through Safe mode into the system, XP system, press and hold F8 can enter Safe mode. Then open "Start-control Panel-System", find the System icon and click to open it, select "Universal Serial Bus Controller" under the window to see the yellow "!" Device, select the device, right-click Properties under the window, view the prompts given by Windows from the resources list, click input/Output range to make changes to it, and then make sure to exit if you are prompted to display the conflict-free device. But do not modify the I/O address, the general system will also automatically set the fixed I/O address,

There may be a bad hard drive, unformatted, file directory corruption and other reasons.

WORKAROUND: Restore the data back up well. Mobile devices have data, you must not repartition, formatting and so on. In that case, the recovered data is incomplete. Keep the status quo. The correct analysis and processing is to a large extent can be fully recovered from the original data. Without the need for data recovery Software Scan recovery. Simply using data recovery software to scan for recovery is time-consuming and ineffective. Incomplete data may be recovered.