ERROR_DYNAMIC_CODE_BLOCKED 0x80070677

Error code 1655 · HRESULT 0x80070677

WINDOWS

The operation was blocked as the process prohibits dynamic code generation.

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_DYNAMIC_CODE_BLOCKED is a Windows error code (system error 1655, returned as HRESULT 0x80070677) reported by Windows. Its official message is: “The operation was blocked as the process prohibits dynamic code generation.”

How to fix ERROR_DYNAMIC_CODE_BLOCKED

  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_INSTALL_REJECTEDERROR_NOT_SAME_OBJECTERROR_FAIL_FAST_EXCEPTIONREGDB_E_CLASSNOTREGCO_E_SERVER_EXEC_FAILUREWININET_E_TIMEOUTWININET_E_NAME_NOT_RESOLVEDWININET_E_CANNOT_CONNECT

Source: Microsoft WinError.h

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