ERROR_OPLOCK_NOT_GRANTED 0x8007012C

Error code 300 · HRESULT 0x8007012C

WINDOWS

The oplock request is denied.

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_OPLOCK_NOT_GRANTED is a Windows error code (system error 300, returned as HRESULT 0x8007012C) reported by Windows. Its official message is: “The oplock request is denied.”

How to fix ERROR_OPLOCK_NOT_GRANTED

  1. Run the affected program as administrator (right-click → Run as administrator)
  2. Check permissions on the target resource: Properties → Security → your account
  3. Check Event Viewer → Windows Logs → Security for the matching audit entry

Related errors

ERROR_OPLOCK_BREAK_IN_PROGRESSERROR_OPLOCK_SWITCHED_TO_NEW_HANDLEERROR_OPLOCK_HANDLE_CLOSEDERROR_PARTIAL_COPYERROR_INVALID_OPLOCK_PROTOCOLERROR_TOO_MANY_POSTS

Source: Microsoft WinError.h

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