WinTrouble

How to fix ERROR_FILE_LEVEL_TRIM_NOT_SUPPORTED

Code:326 (0x146)
Teracopy: Reports error

Description

Device does not support file-level TRIM.

Causes

This error occurs when an attempt is made to perform a file-level TRIM operation on a storage device that does not support this feature:

  • Storage device does not support TRIM operations.
  • File system does not support TRIM at the file level.
  • Older SSD firmware lacking TRIM support.
  • TRIM disabled in device or system settings.
  • Virtual or network storage not supporting TRIM.
  • RAID configurations that don't support TRIM pass-through.

Solutions

Verify Device Support

Check if the storage device supports TRIM operations:

  • Use disk management utilities to verify TRIM support.
  • Check the device manufacturer's specifications.
  • Use command-line tools to query TRIM support (fsutil behavior query DisableDeleteNotify).

Update Device Firmware and Drivers

Ensure the storage device has the latest firmware and drivers:

  • Check the manufacturer's website for firmware updates.
  • Download and install the latest storage device drivers.
  • Update the SSD firmware following manufacturer instructions.
  • Restart the system after updates.

Enable TRIM Support

Verify that TRIM is enabled on the system:

  • Check Windows TRIM settings using fsutil behavior query DisableDeleteNotify.
  • A return value of 0 means TRIM is enabled.
  • Enable TRIM if disabled using fsutil behavior set DisableDeleteNotify 0.
  • Run as administrator when executing these commands.

Check File System Compatibility

Ensure the file system supports TRIM operations:

  • NTFS and ReFS support TRIM on supported devices.
  • Older file systems may not support file-level TRIM.
  • Consider reformatting with a modern file system if necessary.

Use Alternative Optimization Methods

If TRIM is not supported, use alternative methods:

  • Use disk optimization tools that work without TRIM.
  • Manually optimize the drive using Windows Disk Optimizer.
  • Consider using manufacturer-specific optimization utilities.

Avoid File-Level TRIM Operations

Modify application logic to handle devices without TRIM support:

  • Detect TRIM support before attempting operations.
  • Skip TRIM operations gracefully when not supported.
  • Use alternative methods for space reclamation.

Review RAID Configuration

For RAID arrays, verify TRIM support:

  • Check if the RAID controller supports TRIM pass-through.
  • Update RAID controller firmware and drivers.
  • Consider RAID configurations that support TRIM (e.g., RAID 0).