The I/O device error prevents you from accessing the files on your hard drive sầu, USB flash drives, SD cards or other storage devices. Given the urgency to solve such a problem, we will show you what the causes of I/O device error are, how khổng lồ fix the error, & how lớn recover your precious files from the affected device using Data Recovery Wizard.

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"The request could not be performed because of an I/O device error"

"I have sầu a 500 GB Western Digital external hard drive. It shows up in disk management and also in Windows Explorer. But when I tried to access its files, I got an I/O Device error saying "The request could not be performed because of an I/O device error." How can I fix the I/O device error và regain control over my device?"


To solve sầu your problem, you can take the corresponding measures lớn fix it.

Workable SolutionsStep-by-step Troubleshooting
Fix 1. Chechồng the ConnectionIf there is another computer available, try to lớn connect the same device to lớn another computer...Full steps
Fix 2. Change Drive sầu LetterGo lớn "This PC", right-cliông chồng it and choose "Manage" > "Disk Management"...Full steps
Fix 3. Update Device DriverCliông xã "Device Manager" then exp& "Disk drives". Find và right-cliông chồng the problematic USB...Full steps
Fix 4. Change Transfer ModePress "Windows+X" khổng lồ open the menu, then select "Device Manager"...Full steps
Fore More FixesUse CMD to repair IO device error or sover disk for repair (in Fix 5 và 6)...Full steps

About I/O device error

An I/O Device Error (short for Input/đầu ra Device Error) usually happens on external hard drives, SD cards, USB flash drives, CDs, or DVDs when you try to lớn perform write and read operations on the device in Windows 10/8/7. 


If most of the cases, users encounter the I/O device error when they attempt khổng lồ open a hard drive or external storage device. It also occurs when users try to initialize a disk showing "Disk 1 Not Initialized" in Disk Management. Generally, it will display "The request could not be performed because of an I/O device error" in the prompt. But actually, there are other two messages that indicate an I/O device error. 

"Only part of a ReadProcessMemory or WriteProcessMemory request was completed."I/O Error codes: error 6, error 21, error 103, error 105, error 131

When there is an I/O device error on your hard drive sầu or other storage devices, you can"t access the files on it and can"t persize common operations lượt thích disk checking và formating.


The I/O device error could be caused by both minor connection issues or serious hardware damage on the storage medium. You may receive the error message "The request could not be performed because of an I/O device error" due to:

Connection issue between your hard drive sầu, USB, SD thẻ, and your computerDriver letter conflict between the problematic storage device & the partition on your computerOutdated device driverWindows is trying to use a transfer mode that the hardware device cannot useYour device is damaged or corrupted

How khổng lồ fix I/O device error on an external/internal hard drive

Based on the underlying issue, you have the following solutions available lớn fix the I/O device error.

Method 1. Cheông chồng the Hardware Connection

You can try these tips to lớn kiểm tra whether the I/O error is caused by a loose connection or faulty cable/USB port.

If there is another computer available, try to connect the same device to another computer.Try to connect your hard drive or USB lớn another port (especially a rear one). If it"s an SD card, try another card reader instead.Change the USB cable

If the I/O device error persists, don"t worry. More methods are available for you lớn apply.

Method 2. Change the Drive sầu Letter

Some of the users have sầu reported the effectiveness of just changing the drive letter of the device that shows an I/O error. You can change the drive letter of a hard drive sầu, USB, or SD card easily in Disk Management.

Step 1. Go to "This PC", right-click it và choose "Manage" > "Disk Management".

Step 2. Right-clichồng your hard drive sầu, USB or SD card and select "Change Drive Letter và Paths".

Step 3. In the new window, cliông chồng "Change".

Step 4. Assign a new drive letter to lớn your USB & clichồng "OK".


Method 3. Update or Reinstall the Device Driver

An outdated device driver has the potential khổng lồ cause various issues related to lớn your device. For example, "there is no media in the specified device", USB not showing up in Windows, và "the request could not be performed because of an I/O device error".

Xem thêm:

Step 1. Connect the USB flash drive sầu or external hard drive sầu lớn PC, right-cliông chồng on "This PC" (in Windows 10) và choose "Manage".

Step 2. Click "Device Manager" then expand “Disk drives”. Find and right-cliông xã the problematic USB drive & select "Update driver"

Step 3. Click "Search automatically tìm kiếm for driver software online".

Step 4. Wait for the driver khổng lồ be updated, then reboot your computer. Afterward, you can open your device khổng lồ kiểm tra whether the I/O error still exists.


Method 4. Fix I/O device error by changing the transfer mode in IDE Channel Properties

As mentioned, if Windows is trying to lớn use a transfer mode that your device doesn"t support, you will encounter the error message "The request could not be performed because of an I/O device error." To remove sầu the I/O error, you just need to lớn switch the transfer mode.

Step 1. Press "Windows+X" khổng lồ open the thực đơn, then select "Device Manager".

Step 2. Expvà "IDE ATA/ATAPI controllers". A subset will open, listing the different IDE ATA/ATAPI channels for the computer.

Step 3. Right-cliông chồng the channel where the appropriate drive sầu is connected, & then cliông chồng "Properties". Typically, this channel is "Secondary IDE Channel".

Step 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" & exit all windows.

Step 5. Test the drive and check if the message "the request could not be performed because of an I/O device error" has been removed.


Method 5. Fix I/O device error in Comm& Prompt

This option will run the chkdsk function to kiểm tra and repair disk errors on the hard drive, USB drive, or other storage devices to fix I/O device error. But you may receive sầu the error message "cannot open the volume for direct access" using CMD.

Step 1. Press "Windows" Key and type: cmd lớn open the thực đơn, right-cliông chồng "Command Prompt" và choose "Run as administrator" option.

Step 2. Cliông chồng "Yes" when you are presented with a window requesting permission khổng lồ launch the Comm& Prompt as Administrator.

Step 3. In the new Comm& Prompt window, type: chkdsk E: /f /r /x (replace E with the drive sầu letter for your device).

If you don"t have sầu any technical know-how & want to lớn minimize data risks, using third-party software could be a better choice. The Commvà line is suitable for computer professionals since wrong commands can cause severe problems. Therefore, we strongly recommover you try an automatic command line alternative sầu. Tools M is a practical computer fixing tool that is safe and light-weighted. It"s a perfect alternative to lớn CHKDSK comm&. Use this one-cliông xã tool khổng lồ solve your computer issues.

To fix tệp tin system error or disk error:

Step 1:  DOWNLOAD Tools M for Free và install it.

Step 2: Open the software and select the "File showing" option. 

Step 3: Choose the drive và wait for repairing. After the operation completes, clichồng the "View" button lớn kiểm tra the drive sầu. 


Method 6. Skết thúc for Manual Repair

If none of the methods above helps to lớn remove the I/O device error, you are recommended to sover your device for manual repair because there may be serious damage on your hard drive, USB flash drive sầu or memory card.

Recover data from I/O device error 

If you have important data lost on the external hard drive sầu, USB flash drive sầu, or SD thẻ after fix the I/O device error, you can recover your files with hard drive sầu recovery software - Data Recovery Wizard. data recovery software supports deleted data recovery, formatted tệp tin recovery, RAW tệp tin recovery and more. To recover data from your device that suffered from the I/O device error: