External Hard Drive Won't Format to exFAT, How to Solve?

I'm trying to format an external hard drive, preferably to exFAT, but diskpart and Disk Management failed. But I get an error message: DiskPart has encountered an error: Data error (cyclic redundancy check). See the System Event Log for more information. What should I do?

Best Answered by

Roxanne· Answered on Sep 13, 2023

The cyclic redundancy check data error mostly results from corrupt system files, especially registry corruption. Therefore, you need to check and detect the errors to repair these errors. In addition, you can rely on a third-party partition expert to simplify the format process without causing data loss or system errors.

Way 1. Run EaseUS Partition Master to Format the Hard Drive

As a professional and easy-to-use method, EaseUS Partition Master can format hard drives and set them to most file systems. With the help of its "Format" tool, you can fix the "unable to format the external hard drive" problem and successfully format it to exFAT. Follow the details below to learn how to resolve this issue:

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Step 1. Plug the external hard drive into the device that downloaded and launched EaseUS partition software.

Step 2.  Right-click the external hard drive, choose "Format," and assign its settings, including partition label, driver, file system(exFAT), and cluster size. Then click "OK."

Step 3. Press "Yes" when you see the Warning window. (Back up important data in advance.) Click "Execute 1 Task(s)" > "Apply" to begin.

Way 2. Use Error Checker to Repair System File Error

To solve the data error in Diskpart, you can try to apply the system file checker and CHKDSk commands to detect and fix the error. Read and learn in the following comprehensive post:

Further Information: How to Fix Data Error Cyclic Redundancy Check


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