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Fix DiskPart I/O Device Error in Windows 10/8/7

Tracy King updated on Jan 25, 2021 Partition Manager | How-to Articles

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.

1. Update or Reinstall the Device Driver
2. Run CHKDSK to Fix Bad Sectors on the Hard Drive
3. Rebuild MBR to fix DiskPart I/O Device Error

"Hello, help! I was trying to use Diskpart to manage my hard dives 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. 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 I/O error. So update or reinstall 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 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 diver 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

2. 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 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

Use a Free Partition Manager Tool to Run CHKDSK

To check the file system and repair bad sectors, EaseUS Partition Master Free 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 hard drive automatically in a few clicks.

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.

Step 1. Open EaseUS Partition Master on your computer. Then locate the disk, right-click the partition you want to check, and choose "Check File System".

Check Partition - Step 1

Step 2. In the Check File System window, keep the "Try to fix errors if found" option selected and click "Start".

Check Partition - Step 2

Step 3. The software will begin checking your partition file system on your disk. When it has completed, click "Finish".

Check Partition - Step 3

3. 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. 

Step 1. Create a WinPE bootable disk.

  • Download and launch EaseUS Partition Master on a new PC which runs the same system as yours.
  • Click "WinPE Creator" on the toolbar. And select to create the bootable disk on a USB drive. If your computer has a CD/DVD drive, you can also create the bootable disk to CD/DVD.
  • Click "Proceed" to finish the process.
create a bootable disk

Step 2. Rebuild MBR.

  • Connect the bootable USB or CD/DVD to your PC.
  • Press "Del" when you are restarting the computer. Boot your computer from "Removable Devices" or "CD-ROM Drive". And then EaseUS Partition Master will run automatically.
  • Right-click the disk whose MBR is damaged. Choose "Rebuild MBR" to continue.
rebuild MBR
  • Select the type of MBR with the current operating system. Then, click "OK".
rebuild MBR
  • Click the "Execute 1 Operation" button at the top-left corner and click "Apply" to build the MBR. After that, your computer can boot normally again.
rebuild MBR


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, the parameter is incorrect, media is write-protected, 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 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 rrror (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 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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