You can solve 'DiskPart has encountered an error: The request could not be performed because of an i/o device error. ' with three effective solutions like listed below.

"Hello, help! I was trying to use Diskpart to manage my hard drives in my PC yesterday but received an error message which told me that 'DiskPart has encountered an error: The request could not be performed because of an I/O device error'. What is the I/O device error? How can fix it?"

The I/O device error (short for Input/Output device error) will occur when Windows can’t perform an input/output action (such as reading or copying data) when it is trying to access a drive or disk. The disk I/O error appears when there are physical bad sectors (such as a damaged head), logical bad sectors, or a corrupted partition table.

DiskPart has encountered an error i/o device error

When encountering I/O device error, and you run DiskPart utility for disk partitioning, you may get stuck or even failed to access, format, or partition hard drives. Most users have all received such an error message, saying that DiskPart has encountered an error and the request cannot be performed due to I/O device error.

SO what can you do to solve DiskPart has encountered an I/O device error? For different causes of the problem, we summarize the following effective methods for you. Although most disk I/O error are caused by physical damage of disk, we also suggest you try these solutions to see if the problem can be solved.

How to Fix 'DiskPart has encountered an error: The request could not be performed because of an i/o device error.'

Sometimes, an I/O device error may occur when something wrong with device connection, such as bad cables, loose connection, USB ports damage. In this case, make sure your disk has been properly connected to your computer. Besides, don't use an incompatible transfer mode or improper interface, which also cause disk I/O problem and prevent DiskPart from working normally.

If the hardware connection and transport mode are fine, you still have DiskPart has encountered an error: I/O device error when running the command lines, fix the issue with the following methods.

1. Use a Free Partition Manager Tool to Fix Error

To check the file system and repair bad sectors, EaseUS Partition Master does exactly as Command Prompt. If you are not familiar with the command line and are afraid of more serious damage caused by misoperation, we highly recommend you use this user-friendly tool. EaseUS partition management software allows you to repair the hard drive automatically in a few clicks.

Free Download 

Windows 11/10/8/7100% Secure

As one of the best DiskPart alternatives, EaseUS partition manager supports finishing the same partitioning jobs of Diskpart such as creating the new partition, deleting a partition, cleaning partition, or repairing and fix partition, etc..

  • Resize/move partitions (the Pro version allows to allocate space from D drive to C drive directly)
  • Copy and clone an entire disk to another even the target partition is smaller than the source
  • Convert a logical partition to primary or primary partition to logical, FAT32 to NTFS partition, MBR disk to GPT, or GPT disk to MBR
  • Migrate OS to SSD(Pro version)to speed up Windows to upgrade hard disk and speed up Windows

You can free download this software, check and repair the partition with step-by-step guides.

With simple clicks, you can fix the error; share this way to help more people who are in trouble.


2. Update or Reinstall the Device Driver

If the device driver is outdated or incompatible with your hard disk, it might affect its input/output functionality and lead to an I/O error. So update or reinstall the disk driver to your hard drive to troubleshoot.

Update Disk Driver

Step 1. Right-click This PC > click "Manage". On the left side, click "Device Manager".

Step 2. Double-click to expand the Disk driver. Right-click your disk driver and choose "Update Driver Software".

Step 3. In the pop-up window, choose "Search automatically for updated driver software". Then, wait for the computer to search and install the latest driver software.

fix missing drive Windows 10 - update disk driver

Re-install Disk Driver

If updating the driver doesn't work, you can still try to reinstall the driver to solve the missing drive issue.

Step 1. Right-click the disk driver, click "Uninstall". Click "OK". Restart your PC, and Windows will attempt to reinstall the driver.

Step 2. Or you can go to the company's website and find the latest updates you need to download and install on your computer.

fix missing drive Windows 10 - reinstall driver

3. Run CHKDSK to Fix Bad Sectors on the Hard Drive

CHKDSK command will repair and fix logical bad sectors that cause DiskPart I/O errors on your hard drive partition, external hard drive, or other storage devices. You get two ways to run CHKSDSK in Windows to repair drive errors in Windows 10, 8.1, 8, or 7.

Run CHKDSK in Command Prompt

Step 1. Press the Windows key and type cmd.

Step 2. Right-click "Command Prompt" and choose "Run as administrator".

Step 3. Enter the following command: chkdsk E: /f /r /x

"E" means the drive letter of the partition you want to repair.

run chkdsk command in windows 10 command prompt

4. Rebuild MBR to Fix DiskPart I/O Device Error

If the error 'Diskpart has encountered an error: the request could not be performed because of an i/o device error. see the system event log for more information.' is caused by corrupted MBR (Master Boot Record), use EaseUS disk management program to rebuild MBR. 

Free Download 

Windows 11/10/8/7100% Secure

Step 1. Create a WinPE bootable disk

  • Launch EaseUS Partition Master, and click "Bootable Media" on the toolbar. Select "Create bootable media".
  • Click "Next" to finish the process.
create a bootable disk

Step 2. Boot EaseUS Partition Master Bootable USB

  • Connect the bootable USB or CD/DVD to your PC. 
  • Press F2 or Del when you restart the computer to enter the BIOS screen. Set and boot your computer from "Removable Devices" or "CD-ROM Drive". And then EaseUS Partition Master will run automatically.

Step 3. Rebuild MBR

  • Click "Toolkit" and choose "Rebuild MBR".

rebuild MBR

  • Select the disk and the type of MBR. Then, click "Rebuild".
rebuild MBR
  • After that, you can see "MBR has been successfully rebuilt on Disk X".
rebuild MBR

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What Is Diskpart and How to Use Diskpart Commands

After fixing Diskpart errors, you may continue applying Diskpart commands to execute disk partitioning operating on your computer. For a step-by-step guide, you may follow this tutorial article for help. 

Image of Diskpart


It's no longer a new problem that some users get stuck with Diskpart, having the 'diskpart has encountered an error the request could not be performed because of an i/o device error' issue. On this page, we've analyzed the possible causes briefly as well as displaying corresponding methods to help you fix the DiskPart has encountered an error I/O device error. Hope these fixes can help you solve your problem.

Other possible errors while running DiskPart are: access is denied, media is write-protected, the parameter is incorrect, device not ready, cyclic redundancy check, etc.. Read the tutorials to figure out.

FAQs About DiskPart I/O Device Error in Windows 10/8/7

The following are the frequently asked questions related to how to fix DiskPart has encountered an error: the request could not be performed because of an i/o device error. Check the brief answers for these problems.

How do you fix Diskpart has encountered an error the request could not be performed because of an I O device error?

To fix the DiskPart I/O device error, try the tips below:

  • Check hardware connections
  • Change the transfer mode for the device
  • Update or reinstall the device driver
  • Run CHKDSK to fix bad sectors on the hard drive
  • Rebuild MBR

How do you fix DiskPart has encountered an error the system Cannot find the file specified?

You may receive the notification "The system cannot find the file specified" in DiskPart under different situations. To help you cope with this annoying issue, here we feasible approaches you can try:

  • Run CHKDSK command
  • Fix the hard drive via disk clean
  • Check the system log file
  • Look for files via Regedit
  • Update your hard disk driver
  • Install Windows updates

How do I fix Diskpart has encountered an error data error cyclic redundancy check?

When there's a bad spot on the media of your hard disk, a CRC error may occur. A cyclic redundancy check error may also result from many other reasons that seem to be inevitable. To fix data error Cyclic Redundancy Check, you have the following ways.

  • Fix data error (Cyclic Redundancy Check) via CHKDSK
  • Repair missing/corrupted system files that cause data error (CRC)
  • Recover data from inaccessible drive with data error (CRC)
  • Send for manual repair

How do I fix a CRC error on my external hard drive?

To fix a CRC error on the external hard drive, you can:

  • Check hard drive for errors to fix 'Data Error Cyclic Redundancy Check' problem
  • Recover files from RAW external hard drive shows 'Data Error Cyclic Redundancy Check' error

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Updated by Oliver

Oliver is an EaseUS professional writer who dares explore new areas. With a passion for solving tech issues with straightforward guides for common users, Oliver keeps honing his writing craft by developing in-depth solutions for disk and partition management, computer boot-up issues, file transfer, etc.

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Written by Tracy King

Tracy became a member of the EaseUS content team in 2013. Being a technical writer for over 10 years, she is enthusiastic about sharing tips to assist readers in resolving complex issues in disk management, file transfer, PC & Mac performance optimization, etc., like an expert.

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