How to Fix ERROR_DATA_CHECKSUM_ERROR

The ERROR_DATA_CHECKSUM_ERROR typically indicates a problem with data integrity during transmission or storage. It has the 323 (0x143) code and features the A data integrity checksum error occurred. Data in the file stream is corrupt message.

This error occurs when the checksum value of the data does not match the expected value, suggesting that the data has been corrupted. It is usually caused by incomplete downloads due to an unstable connection or an interrupted transfer process caused by sudden system shutdowns or power failures. However, it may also be due to bad sectors on the hard drive, or insufficient space.

How do I fix ERROR_DATA_CHECKSUM_ERROR?

1. Run Check Disk Utility (chkdsk)

1. Press Windows + X and select Terminal (Admin).
2. Type the following command and press Enter (Replace C: with the affected drive letter): chkdsk C: /f /r /x
3. Follow on-screen instructions and reboot after the scan.

Checking the disk for errors is the first thing to do when you get an error such as ERROR_DATA_CHECKSUM_ERROR and usually it fixes the problem. If you find any errors on the drive, click the highlighted link to learn how to fix them.

2. Run System File Checker (SFC) and DISM

1. Press Windows + X and select Terminal (Admin).
2. Run the SFC scan by typing the following command and pressing Enter: sfc /scannow
3. If the issue persists, run DISM to fix the Windows image: DISM /Online /Cleanup-Image /RestoreHealth
4. Reboot after completion.

The ERROR_DATA_CHECKSUM_ERROR is sometimes caused by file system corruption so SFC and DISM scans will check and repair any such issues.

3. Check and replace faulty RAM

1. Press Windows + R, type mdsched.exe, and press Enter.
2. Choose Restart now and check for problems.
3. If errors are detected, consider replacing the RAM.

Corrupted RAM can lead to checksum errors. Besides using Windows Memory Diagnostic, if possible, open the PC case and reseat the RAM modules on the motherboard.

4. Update or reinstall the disk drive and storage controllers drivers

1. Press Windows + X and select Device Manager.
2. Expand the Disk drives and the Storage controllers sections
3. Right-click each device and select Update driver.
4. Reboot after updating all essential drivers.

You may also go to the disk drive manufacturer’s website and download the correct drivers for your system. If the system doesn’t find any new drivers, install the latest Windows updates and try using a driver update utility. Such tools update your drivers automatically and a lot faster than you could do it manually.

If the solutions above didn’t fix the problem, as a last resort, you may also perform a Windows 11 clean installation.

We hope that the steps above helped you fix the ERROR_DATA_CHECKSUM_ERROR and now everything is back to normal. For any other questions or suggestions, don’t hesitate to use the comments section below to let us know.