> How to Fix a Device Error on an IO External Hard Drive

How to Fix a Device Error on an IO External Hard Drive

Posted on Friday, July 20, 2012 | Comments Off





1. Connect the external hard drive to the computer. Run an antivirus program. Click the 'Scan' tab or button, then click 'Custom.' Uncheck all items in the list except for the drive letter assigned to the external drive.
2. Click 'OK.' Click 'Scan' or 'Scan Now' to run a virus scan on the hard drive. Quarantine or remove any infections the virus scanner detects.

3. Click 'Start.' Input 'cmd.exe' into the search field. Press 'Enter' to open Command Prompt. Input 'chkdsk
: /f /r' into Command Prompt. Replace '
' with the letter assigned to your external hard drive.
4. Press 'Enter' to run CheckDisk on the drive. CheckDisk will search for and repair detected errors or bad sectors.
5. Burn the files on the external hard drive to a set of DVDs or move the files to another drive, if possible. If the IO device error reappears when attempting to move the files, disconnect the external hard drive from the computer.
6. Remove the power adapter from the drive. Check the documentation included with the drive for instructions to take the drive apart. If no instructions are available, contact the manufacturer for instructions or find out if disassembling the drive will void the drive's warranty.
7. Remove the screws securing the faceplate to the drive or from the edge of the enclosure. Insert the edge of a small, flathead screwdriver in between either side of the enclosure to wedge both sides apart.
8. Check the connections to the drive. Confirm that the IDE or SATA interface is plugged into the back of the drive. Reassemble the external hard drive, reconnect the power adapter and reconnect the drive to the PC.
9. Attempt to access the files on the drive. If the IO device error reappears, return to Command Prompt. Input 'format /fs:fat32
:' into the command-line prompt. Replace '
' with the letter assigned to the external hard drive.
10. Press 'y' when the message 'Proceed with Format (Y/N)?' appears. The process will format the drive, erasing all data on the disk. If the drive still fails to function after format, you will need to replace the drive.

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