ERROR_TOO_MANY_POSTS 0x8007012A

Error code 298 · HRESULT 0x8007012A

WINDOWS

Too many posts were made to a semaphore.

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_TOO_MANY_POSTS is a Windows error code (system error 298, returned as HRESULT 0x8007012A) reported by Windows. Its official message is: “Too many posts were made to a semaphore.”

How to fix ERROR_TOO_MANY_POSTS

  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_TOO_MANY_DESCRIPTORSERROR_TOO_MANY_MODULESERROR_TOO_MANY_TCBSERROR_TOO_MANY_MUXWAITERSERROR_PARTIAL_COPYERROR_OPLOCK_NOT_GRANTEDERROR_INVALID_OPLOCK_PROTOCOL

Source: Microsoft WinError.h

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