You start a backup using Macrium Reflect, expecting the disk image to complete normally. Then the process suddenly stops and shows error code 9. The backup fails before finishing. That moment can be worrying, especially if you rely on the backup for system recovery or disk cloning.
This error usually appears when Macrium Reflect cannot read data from a hard drive, SSD, or external storage device during a backup or cloning operation. The problem often relates to disk sectors, file system issues, or hardware connection problems. In this guide you will learn what Macrium Reflect Error 9 means, why it happens during disk imaging, and how to fix it so your backup process completes successfully.
What Is Macrium Reflect Error 9?
Macrium Reflect Error 9 occurs when the software encounters a disk read failure while creating a backup image or cloning a drive. Macrium Reflect works by scanning the storage device sector by sector and copying data into a disk image file. During this process the program reads information from the file system, disk partitions, and storage sectors. If a sector cannot be read or the operating system reports an I/O failure, the backup engine stops and returns error code 9.
This often happens when the system detects damaged disk sectors, file system corruption, or communication problems between the storage device and the computer.
Because disk imaging requires consistent access to every part of the drive, even a single unreadable sector can interrupt the operation. In many situations the drive still works normally for everyday tasks, but the imaging process exposes hidden disk issues that appear only during large sequential reads.
Users typically encounter this error while running a full system backup, performing a disk cloning operation, or verifying a backup image file inside the Macrium Reflect interface.
Common Causes of Macrium Reflect Error 9
This error usually indicates a problem reading data from the storage device or file system.
Common causes include:
- Bad sectors on a hard drive or solid state drive
- Corrupted NTFS file system
- Failing storage hardware
- Unstable external drive connection
- Disk read errors during imaging
- Permission conflicts with protected system files
- Outdated Macrium Reflect software
These conditions interrupt the backup engine while it reads disk sectors.
How to Fix Macrium Reflect Error 9?
Several solutions can help restore the backup process. Most fixes focus on checking disk health and repairing file system problems.
Fix #1 Restart the Backup Process
Temporary system issues sometimes interrupt the backup operation. Restarting the system refreshes disk services and storage drivers.
Here are the following steps which help you restart the backup process.
- Close Macrium Reflect
- Restart the computer
- Launch Macrium Reflect again
- Start the backup job once more
- Monitor the imaging process
If the error came from a temporary read interruption, the backup may complete normally.
Fix #2 Run CHKDSK to Repair Disk Errors
The CHKDSK utility scans the file system and repairs logical disk errors. This process also identifies bad sectors that could interrupt disk imaging.
Follow the steps below to easily run a disk scan.
- Press Windows + S
- Search for Command Prompt
- Right-click it and choose Run as Administrator
- Type the command
chkdsk /f /r - Press Enter
- Allow Windows to complete the disk scan
Once the scan finishes, restart the system and run the backup again.
Fix #3 Check Disk Health Using SMART Tools
Modern drives include SMART monitoring technology that tracks hardware health. If the disk shows warnings, the drive may be failing.
You can use disk monitoring tools that read SMART values and display information about:
- sector health
- drive temperature
- read error rate
- reallocated sectors
If SMART reports hardware problems, backing up the drive immediately is recommended.
Fix #4 Update Macrium Reflect
Older versions of backup software sometimes contain compatibility issues with newer storage drivers or Windows updates.
Follow these steps to check for updates.
- Open Macrium Reflect
- Go to the Help menu
- Select Check for Updates
- Install the latest version
Updating ensures the software uses the newest backup engine and bug fixes.
Fix #5 Reconnect External Drives
If the backup destination or source drive is connected through USB, connection interruptions may trigger disk read errors.
Try these steps:
- Disconnect the external drive
- Plug it into another USB port
- Avoid USB hubs
- Restart the backup process
A stable connection improves data transfer reliability.
Fix #6 Exclude Problematic Files
Sometimes a specific corrupted file interrupts the backup process. Macrium Reflect allows certain files or folders to be excluded from the image.
You can modify backup settings to exclude folders that contain problematic files. After excluding them, run the backup again.
Fix #7 Run Backup from Rescue Media
Macrium Reflect provides a bootable rescue environment that runs outside the Windows operating system. This environment avoids file locks and active system processes that may interfere with disk access.
To use this method:
- Create Macrium Rescue Media
- Restart the computer
- Boot from the rescue USB drive
- Run the backup from the rescue environment
Many disk imaging problems disappear when the system is not actively using the drive.
Fix #8 Replace a Failing Storage Device
If disk errors continue even after running CHKDSK and scanning the drive, the storage hardware may be failing. Drives develop bad sectors as they age.
Signs of failing hardware include:
- slow disk performance
- repeated disk errors
- clicking sounds from a hard drive
- increasing bad sectors
In this situation replacing the storage device is the safest option.
Prevention Tips to Avoid Errors in the Future
Preventing disk imaging errors helps maintain reliable system backups. A few simple maintenance habits improve storage health.
Helpful practices include:
- monitor disk health using SMART tools
- run periodic disk scans
- maintain enough free disk space
- keep Macrium Reflect updated
- verify backup images after creation
- replace aging storage drives early
Regular maintenance reduces the chance of backup failures.
Conclusion
Macrium Reflect Error 9 usually appears when the software cannot read a disk sector during the imaging process. The error often points to storage issues such as bad sectors, corrupted file systems, unstable connections, or failing hardware. Because disk imaging reads every sector on the drive, it often reveals problems that normal system use does not show.
Most users resolve the error by running CHKDSK, checking disk health, reconnecting external drives, or updating Macrium Reflect. If the issue persists, the drive itself may be failing and should be replaced to protect your data.
If you encountered Macrium Reflect Error 9 and found another solution that worked for you, share your experience in the comments. Your feedback may help others complete their backups successfully.
