ERROR_CTLOG_TRACKING_NOT_INITIALIZED 0xC03A0020

Hex 0xC03A0020 · Decimal -1069940704 · Type NTSTATUS

WINDOWS

Change Tracking is not initialized for this virtual disk.

Windows troubleshooting diagram: Device Manager warning and a system file scan
Windows errors: check drivers, system files and Event Viewer, in that order.

What it means

ERROR_CTLOG_TRACKING_NOT_INITIALIZED is a Windows error code (NTSTATUS 0xC03A0020) reported by Windows. Its official message is: “Change Tracking is not initialized for this virtual disk.”

How to fix ERROR_CTLOG_TRACKING_NOT_INITIALIZED

  1. Reboot once — many one-off system codes disappear with a clean restart
  2. Repair system files: 'sfc /scannow' then 'DISM /Online /Cleanup-Image /RestoreHealth'
  3. Find the source in Event Viewer → System: filter for this exact code and open its provider link

Related errors

ERROR_CTLOG_LOGFILE_SIZE_EXCEEDED_MAXSIZEERROR_CTLOG_VHD_CHANGED_OFFLINEERROR_CTLOG_INVALID_TRACKING_STATEERROR_CTLOG_INCONSISTENT_TRACKING_FILESTATUS_CTLOG_TRACKING_NOT_INITIALIZEDERROR_VIRTDISK_DISK_ONLINE_AND_WRITABLESTATUS_VIRTDISK_DISK_ONLINE_AND_WRITABLE

Source: Microsoft WinError.h

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