Windows users may occasionally encounter the ERROR_RANGE_LIST_CONFLICT (627/0x273) error, which typically appears during system operations involving file access, network sharing, or disk management. This error code indicates a conflict in range lists, often related to corrupted system files, network issues, or incorrect permissions. Here’s a comprehensive guide to diagnosing and resolving this frustrating Windows error.

Understanding ERROR_RANGE_LIST_CONFLICT (627/0x273)

The ERROR_RANGE_LIST_CONFLICT error occurs when Windows detects overlapping or conflicting memory or file ranges during operations. Common scenarios include:
- File transfers over a network
- Disk partitioning or defragmentation
- System updates or installations
- Accessing shared resources

Common Causes of the Error

  1. Corrupted System Files
    - Damaged or missing Windows system files can trigger this error.

  2. Network Sharing Conflicts
    - Incorrectly configured network permissions or IP range conflicts.

  3. Disk Errors
    - Bad sectors or file system corruption on the storage drive.

  4. Third-Party Software Interference
    - Antivirus or backup tools may lock files improperly.

  5. Outdated Drivers
    - Incompatible or old drivers for storage or network adapters.

Step-by-Step Fixes for ERROR_RANGE_LIST_CONFLICT

1. Run the System File Checker (SFC)

The SFC scan repairs corrupted Windows system files:

sfc /scannow
  • Restart your PC after completion.

2. Check Disk for Errors (CHKDSK)

Run CHKDSK to fix disk-related issues:

chkdsk C: /f /r
  • Replace C: with the affected drive letter.
  • Allow the scan to complete during reboot if prompted.

3. Reset Network Configuration

For network-related conflicts:

netsh winsock reset
netsh int ip reset
ipconfig /flushdns
  • Restart your computer afterward.

4. Update or Reinstall Drivers

  1. Press Win + X and select Device Manager.
  2. Expand Network adapters and Disk drives.
  3. Right-click devices and select Update driver or Uninstall device (then restart to reinstall).

5. Disable Third-Party Antivirus Temporarily

  • Some security software may block file operations. Disable it briefly to test.

6. Check Shared Folder Permissions

If the error occurs with network shares:
1. Right-click the shared folder → Properties → Sharing tab.
2. Ensure proper permissions are set for users/groups.

7. Perform a Clean Boot

  1. Type msconfig in the Run dialog (Win + R).
  2. Under the Services tab, check Hide all Microsoft services and click Disable all.
  3. Go to the Startup tab and open Task Manager to disable startup items.
  4. Restart and check if the error persists.

8. Use Windows Update

Install the latest patches:
1. Go to Settings → Update & Security → Windows Update.
2. Click Check for updates.

Advanced Solutions

Modify Registry (Backup First!)

  1. Press Win + R, type regedit, and navigate to:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters
  1. Create a DWORD (32-bit) value named DisableLeasing and set it to 1.
  2. Restart the Server service or reboot.

Reinstall Windows (Last Resort)

If all else fails, consider a repair install or clean Windows installation.

Preventing Future Errors

  • Regularly update Windows and drivers.
  • Use reliable antivirus software.
  • Avoid abrupt shutdowns during file operations.

By following these steps, most users can resolve the ERROR_RANGE_LIST_CONFLICT (627/0x273) and restore normal system functionality.