ERROR_PAGE_FAULT_DEMAND_ZERO 0x800702EC

Error code 748 · HRESULT 0x800702EC

WINDOWS

Page fault was a demand zero fault.

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_PAGE_FAULT_DEMAND_ZERO is a Windows error code (system error 748, returned as HRESULT 0x800702EC) reported by Windows. Its official message is: “Page fault was a demand zero fault.”

How to fix ERROR_PAGE_FAULT_DEMAND_ZERO

  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_PAGE_FAULT_COPY_ON_WRITEERROR_PAGE_FAULT_TRANSITIONERROR_PAGE_FAULT_GUARD_PAGEERROR_PAGE_FAULT_PAGING_FILEERROR_PRIMARY_TRANSPORT_CONNECT_FAILEDERROR_NOTIFY_CLEANUPERROR_RXACT_COMMITTED

Source: Microsoft WinError.h

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