Storage · high

How to fixCRC-DATA-ERROR

Data Redundancy Error (CRC)

What this error means

CRC-DATA-ERROR is a high-severity storage drive (SSD/HDD) problem. 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. Follow the steps below to fix it.

Before you begin

Save open work and back up important files. Note any recent driver or hardware changes. If Windows cannot start, use the startup guide first.

Work through these checks

0 of 3 complete
01Back up working data immediately (don't overwrite damaged ones)

Back up working data immediately (don't overwrite damaged ones).

Use the instructions for your exact device and operating system. Check the manufacturer’s documentation before changing firmware, hardware, or system settings.

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02Replace the SATA/data cable

Replace the SATA/data cable.

Use the instructions for your exact device and operating system. Check the manufacturer’s documentation before changing firmware, hardware, or system settings.

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03Test the drive with the manufacturer's tool (eg SeaTools, WD Data Lifeguard)

Test the drive with the manufacturer's tool (eg SeaTools, WD Data Lifeguard).

Use the instructions for your exact device and operating system. Check the manufacturer’s documentation before changing firmware, hardware, or system settings.

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Possible causes

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