Storage · high

How to fix Data Redundancy Error (CRC)

Error code: CRC-DATA-ERROR

What this error means

The operating system encountered a Cyclic Redundancy Check error while reading from the file. The data is corrupted and cannot be read. This usually traces back to bad sectors on disk, defective SATA cable and a surviving hard disk drive (HDD) or SSD.

Updated

Before you begin

Save open work and back up important files. Use instructions for your exact device and software version. If Windows cannot start, see the startup guide.

Work through these checks

0 of 3 complete
01Back up working data immediately (don't overwrite damaged ones)
  1. Back up working data immediately (don't overwrite damaged ones)
What to expect

Check whether the original symptom still occurs.

If it does not help

Continue only if this check applies to your device. Consult its manufacturer if you are unsure.

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02Replace the SATA/data cable
  1. Replace the SATA/data cable
What to expect

Check whether the original symptom still occurs.

If it does not help

Continue only if this check applies to your device. Consult its manufacturer if you are unsure.

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03Test the drive with the manufacturer's tool (eg SeaTools, WD Data Lifeguard)
  1. Test the drive with the manufacturer's tool (eg SeaTools, WD Data Lifeguard)
What to expect

Check whether the original symptom still occurs.

If it does not help

Continue only if this check applies to your device. Consult its manufacturer if you are unsure.

Browse related errors

Possible causes

  • Bad sectors on disk
  • Defective SATA cable
  • A surviving hard disk drive (HDD) or SSD