ERROR_LOG_BLOCK_INCOMPLETE 0x800719CB

Error code 6603 · HRESULT 0x800719CB

WINDOWS

Log service encountered a partial or incomplete log block.

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_LOG_BLOCK_INCOMPLETE is a Windows error code (system error 6603, returned as HRESULT 0x800719CB) reported by Windows. Its official message is: “Log service encountered a partial or incomplete log block.”

How to fix ERROR_LOG_BLOCK_INCOMPLETE

  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_LOG_BLOCK_VERSIONERROR_LOG_BLOCK_INVALIDERROR_LOG_INVALID_RANGEERROR_LOG_SECTOR_REMAPPEDERROR_LOG_SECTOR_PARITY_INVALIDERROR_LOG_BLOCKS_EXHAUSTEDERROR_LOG_SECTOR_INVALID

Source: Microsoft WinError.h

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