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

You can resolve the "DiskPart encountered an error: The request could not be performed because of an I/O device error." issue using any of the three effective solutions below.

"Hello, seeking help! Yesterday, I tried to manage my computer's hard drive using Diskpart, but I encountered an error message saying 'DiskPart encountered an error: The request could not be performed because of an I/O device error.' What is an I/O device error, and how can I fix it?"

An “I/O Device Error” (short for Input/Output device error) occurs when Windows is unable to perform an input/output operation, such as reading or copying data from a drive or disk. Disk I/O errors happen when there are bad sectors (physical or logical) or a corrupted partition table.

When you try to partition a disk with the DiskPart utility, you might get stuck and even become unable to access, format, or partition the hard drive, especially when an I/O device error occurs. Most users have encountered such an error message: “DiskPart encountered an error: The request could not be performed because of an I/O device error.”

So, how to fix the “DiskPart encountered an I/O device error”? Below, we've rounded up some effective solutions for this issue according to its different causes. While most disk I/O errors are due to physical damage to the disk, we still recommend that you try these solutions to see if they can resolve the problem.

How to Fix "DiskPart encountered an error: An I/O device error occurred."

An I/O device error might occur when there's an issue with the connectivity, such as a damaged cable, loose connection, or a faulty USB port. In this case, make sure the disk is properly connected to your computer. Also, avoid using an incompatible transfer mode or the wrong interface, as this can cause disk I/O issues and prevent DiskPart from functioning correctly.

If there's no problem with the hardware connection and transfer mode, and you still get the “Diskpart encountered an error: I/O device error” when running Command Prompt, try the solutions below to fix the issue.

1. Fix Errors with a Free Partition Manager

Check the file system and fix bad sectors with AOMEI Partition Assistant, just as you would in Command Prompt. If you're not familiar with command lines and afraid of causing further damage with wrong commands, we highly recommend this user-friendly tool. This disk partition manager allows you to automatically fix your hard drive with just a few clicks.

As one of the alternatives to DiskPart, Partition Manager supports accomplishing the same partition jobs as DiskPart does, like creating new partition, deleting partition, cleaning up or repairing and fixing partitions, etc.

• Adjust/Move partitions (the Professional edition allows you to allocate space from D drive to C drive directly) • Copy and clone an entire disk to another, even if the target partition is smaller than the source • Convert a logical partition to primary, or vice versa; convert FAT32 partition to NTFS, MBR disk to GPT, or GPT disk to MBR • Migrate OS to SSD (Professional edition) for faster Windows booting and better performance

You can download the software for free and follow an easy step-by-step guide to check and fix the partition.

With one click, you can fix it; by sharing, you can help others who are stuck.

2. Update or reinstall device drivers

If your device driver is outdated or incompatible with your hard disk, it might affect the I/O functions of the hard drive and lead to I/O errors. Hence, update or reinstall the hard drive driver to address the issue.

Update the disk driver

Step 1: Right-click on "This PC" and select "Manage." On the left, click "Device Manager."

Step 2: Double-click on “Disk Drives.” Right-click on your disk drive and select “Update Driver Software.”

Step 3: In the window that pops up, select “Search automatically for updated driver software.” Then, wait for your computer to search for and install the latest driver.

Reinstall the disk driver

If updating the driver doesn't help, you can still try reinstalling the driver to fix the missing driver issue.

Step 1: Right-click on the drive and select "Uninstall." Click "OK." Restart your computer, and Windows should try to reinstall the driver.

Step 2: Or, you can visit the company's website to download and install the latest updates onto your computer.

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

The CHKDSK command can fix and address logical bad sectors that cause the DiskPart I/O error on a hard drive partition, external hard drive, or other storage device. In Windows, you have two ways to run CHKDSK to fix drive errors in Windows 10, 8.1, 8, or 7.

Run CHKDSK in Command Prompt

Step 1: Press the Windows key, and then type cmd.

Step 2. Right-click on Command Prompt and select Run as administrator.

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

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

4. Fix DiskPart I/O Device Error by Rebuilding MBR

If the error "Diskpart encountered an error: The request could not be performed because of an I/O device error. Please see the System Event Log for more information" is caused by a damaged Master Boot Record (MBR), use the Disk Management tool to rebuild the MBR.

Step 1: Create a Windows PE boot disk

• Launch Partition Master, and click “Bootable Media” on the toolbar. Choose “Create Bootable Media”. • Click “Next” to finish the process.

Create a Bootable Disk

Step 2. Boot into Partition Master Live USB

Connect the bootable USB or CD/DVD to your computer. Restart your computer and press F2 or Del to enter the BIOS screen. Set it to boot from “Removable Device” or “CD-ROM Drive,” then the Partition Master tool will run automatically.

Step 3: Recover the MBR

Click on “Toolbox” and select “Rebuild MBR”.

Rebuild MBR

Select the disk and MBR type, then click “Rebuild”.

You'll then see a message that the MBR on Disk X has been successfully rebuilt.

Rebuild MBR

You may also like:

What is Diskpart and How to Use Diskpart Commands

After fixing the Diskpart error, you can continue to use Diskpart commands to perform disk partition operations on your computer. For detailed steps, refer to this tutorial article for assistance.

Conclusions

Encountering the "Disk Management encountered an error because of an I/O device error, and the request could not be completed" is not a new issue for some users. On this page, we have briefly analyzed the possible causes and provided corresponding solutions to help you fix the DiskPart I/O device error issue. Hopefully, these troubleshooting methods will assist you in resolving the problem.

Other errors you might encounter when running DiskPart include Access is denied, Media is write protected, Incorrect function, Device not ready, and CRC errors. Read the tutorial to learn how to fix these issues.

Frequently Asked Questions on DiskPart I/O Device Error in Windows 10/8/7

Below are common questions regarding how to resolve the "DiskPart encountered an error: The request could not be performed because of an I/O device error" issue. Check the brief answers to these queries.

How to fix "Diskpart encountered an error and the request could not be completed due to an I/O device error"?

To fix the "Disk Part I/O device error," try the following methods:

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

How to fix the "DiskPart encountered an error: The system cannot find the file specified" issue?

There could be various reasons why you might get the “The system cannot find the file specified” message in DiskPart. To help you resolve this annoying issue, here are some workable methods to try:

• Run the CHKDSK command
• Repair your hard drive with Disk Cleanup
• Check system log files
• Search for files with Regedit
• Update your hard drive drivers
• Install Windows updates

How to fix "Diskpart encountered an error: Data error (cyclic redundancy check)"?

CRC errors can occur when there are bad sectors on the hard drive medium. CRC errors can also occur due to many other seemingly unavoidable reasons. To fix data error cyclic redundancy check, you can try the following methods.

• Fix data errors (Cyclic Redundancy Check) with CHKDSK
• Repair lost/damaged system files causing data errors (CRC)
• Recover data with CRC errors from an inaccessible disk
• Send it to a professional for manual repair

How to fix CRC errors on an external hard drive?

To fix CRC errors on an external hard drive, you can:

1. Check Hard Drive Errors to Fix "Data Error Cyclic Redundancy Check" Issue 2. Recover Files from RAW External Hard Drive with "Data Error Cyclic Redundancy Check" Message