Macrium — Reflect Error Code 23

This error typically appears during backup, restore, or cloning operations and is often accompanied by a message like: "Backup aborted! - Write error - 23 (Data error (cyclic redundancy check))" or "Read Error - 23" . Error 23 generally indicates a CRC (Cyclic Redundancy Check) mismatch. This is a data integrity error, meaning the data being read does not match the checksum calculated when it was written. In simple terms: the system detected corrupt or unreadable data on the source or target drive.

Open and run:

It is . It is almost always a hardware or disk health issue. Primary Causes | Cause | Description | |-------|-------------| | Failing hard drive | Bad sectors on source (drive being backed up) or destination (backup storage drive) | | Corrupt file system | Logical corruption, dirty volume, or file system errors | | Faulty RAM | Memory corruption affecting data reads/writes | | Loose/bad cables | SATA or USB connection issues causing data transfer errors | | Overheating | Thermal throttling or instability during long reads/writes | | Antivirus interference | Real-time scanning locking or altering files during backup | Step-by-Step Troubleshooting 1. Check the Source Drive (the drive you are backing up) Run CHKDSK to find and repair bad sectors and file system errors. macrium reflect error code 23