WD external hard drive giving I/O Device error, how to fix?
"I have a Western Digital external 500 GB hard drive. It shows up in disk management and also in windows explorer. But when I try to access the subfolders, it is giving me an I/O Device error says "The request could not be performed because of an I/O device error". Is there any command prompt or third-party I/O device error repair tool can help to fix the issue and retrieve my data?"
An I/O Device Error (short for Input/Output Device Error) usually happens on external & internal hard drives, SD cards, USB flash drives or pen drives, CD or DVD discs while you are trying to read or copy data. At most times, it coming with "The request could not be performed because of an I/O device error" message.
I/O device error usually occurs because Windows is trying to use a transfer mode that the hardware device cannot use or disk errors. According to these two main reasons, now you can take measures to fix the issue. Here 2 solutions - how to fix I/O device error in command prompt and fix I/O device error by changing the transfer mode for the drive in IDE Channel Properties are offered.
If you have important data on the external & internal hard drive, USB flash drive, pen drive or SD card, you’d better try to recover your files with EaseUS free data recovery software before fixing I/O device error. It is the best way to avoid data loss disaster.
1. Connect the external hard drive, USB drive or SD card to PC, download and launch EaseUS free data recovery software, select the device and click "Scan" button.
2. The software will soon start a quick scan to find the lost & existing data on the device. After it completed, a deep scan will automatically launch in order to find more files.
3. After scan, preview and choose the files you want. Finally, click "Recover" button to retrieve and save them your PC or another disk.
Method 1. Fix I/O device error in command prompt
1. Press Windows Key + X to open the menu, and select the Command Prompt (Admin) option.
2. Click Yes when you are presented with a UAC window requesting permission to launch the Command Prompt as Administrator.
3. In the new Command Prompt window, type chkdsk E: /f /r /x. Here you should replace E with your drive letter.
This option will run chkdsk command prompt to check and repair disk errors on the external & internal hard drive/USB drive/SD card to fix I/O device error. The “/f” parameter tells CHKDSK to fix any errors it finds; “/r” tells it to locate the bad sectors on the drive and recover readable information; “/x” forces the drive to dismount before the process starts.
Method 2. Fix I/O device error by changing the transfer mode for the drive in IDE Channel Properties
1. Press Windows+X to open the menu, and select Device Manager.
2. Expand IDE ATA/ATAPI controllers. A subset will open, listing the different IDE ATA/ATAPI channels for the computer.
3. Right-click the channel where the appropriate drive is connected, and then click Properties. Typically, this channel is Secondary IDE Channel.
4. On the Advanced Settings tab, select PIO Only in the Transfer Mode box for the device that represents the appropriate drive. Typically, this is Device 0. Then, click OK and exit all windows.
5. Test the drive and check if the I/O device error has fixed.
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