ERROR_RING2_STACK_IN_USE 0x800700CF

Error code 207 · HRESULT 0x800700CF

WINDOWS

The ring 2 stack is in use.

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_RING2_STACK_IN_USE is a Windows error code (system error 207, returned as HRESULT 0x800700CF) reported by Windows. Its official message is: “The ring 2 stack is in use.”

How to fix ERROR_RING2_STACK_IN_USE

  1. Run Windows Memory Diagnostic (mdsched.exe) to exclude failing RAM
  2. Recent kernel memory faults usually trace to drivers — update graphics and chipset first
  3. Check the crash dump in C:\Windows\Minidump with WinDbg to identify the module

Related errors

Source: Microsoft WinError.h

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