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 lớn solve such a problem, we will show you what the causes of I/O device error are, how lớn fix the error, and how to 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 & also in Windows Explorer. But when I tried to lớn 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 and regain control over my device?"


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

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

About I/O device error

An I/O Device Error (short for Input/Output đầu ra Device Error) usually happens on external hard drives, SD cards, USB flash drives, CDs, or DVDs when you try to lớn perkhung 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 lớn open a hard drive or external storage device. It also occurs when users try khổng lồ 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 & can"t persize comtháng operations like disk checking & 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, USB, SD thẻ, và your computerDriver letter conflict between the problematic storage device & the partition on your computerOutdated device driverWindows is trying to lớn 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 to lớn fix the I/O device error.

Method 1. Check the Hardware Connection

You can try these tips 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 khổng lồ another computer.Try lớn connect your hard drive or USB to lớn another port (especially a rear one). If it"s an SD card, try another thẻ 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 reported the effectiveness of just changing the drive sầu letter of the device that shows an I/O error. You can change the drive letter of a hard drive sầu, USB, or SD thẻ easily in Disk Management.

Step 1. Go to "This PC", right-cliông chồng it & choose "Manage" > "Disk Management".

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

Step 3. In the new window, click "Change".

Step 4. Assign a new drive sầu letter to lớn your USB & cliông chồng "OK".

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Method 3. Update or Reinstall the Device Driver

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

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

Step 3. Click "Search automatically search 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 check 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 use a transfer mode that your device doesn"t tư vấn, you will encounter the error message "The request could not be performed because of an I/O device error." To remove the I/O error, you just need to switch the transfer mode.

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

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

Step 3. Right-cliông chồng the channel where the appropriate drive is connected, and then clichồng "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 sầu. Typically, this is Device 0. Then, click "OK" & exit all windows.

Step 5. Test the drive và 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 Command Prompt

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

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

Step 2. Click "Yes" when you are presented with a window requesting permission lớn launch the Command Prompt as Administrator.

Step 3. In the new Command 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 and want khổng lồ minimize data risks, using third-buổi tiệc nhỏ software could be a better choice. The Comm& line is suitable for computer professionals since wrong commands can cause severe problems. Therefore, we strongly recommend you try an automatic comm& line alternative sầu. Tools M is a practical computer fixing tool that is safe & light-weighted. It"s a perfect alternative to CHKDSK comm&. Use this one-cliông chồng tool khổng lồ solve your computer issues.

To fix tệp tin system error or disk error:

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

Step 3: Choose the drive sầu & wait for repairing. After the operation completes, clichồng the "View" button khổng lồ check the drive. 

Method 6. Skết thúc for Manual Repair

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

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 card after fix the I/O device error, you can recover your files with hard drive recovery software - Data Recovery Wizard. data recovery software supports deleted data recovery, formatted file recovery, RAW tệp tin recovery và more. To recover data from your device that suffered from the I/O device error:

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