ERROR_APP_DATA_REBOOT_REQUIRED 0x80071134

Error code 4404 · HRESULT 0x80071134

WINDOWS

Fast Cache has been ReArmed and requires a reboot until it can be updated.

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_APP_DATA_REBOOT_REQUIRED is a Windows error code (system error 4404, returned as HRESULT 0x80071134) reported by Windows. Its official message is: “Fast Cache has been ReArmed and requires a reboot until it can be updated.”

How to fix ERROR_APP_DATA_REBOOT_REQUIRED

  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_APP_DATA_LIMIT_EXCEEDEDERROR_APP_DATA_CORRUPTERROR_APP_DATA_EXPIREDERROR_APP_DATA_NOT_FOUNDERROR_REPARSE_POINT_ENCOUNTEREDERROR_REPARSE_TAG_MISMATCHERROR_SECUREBOOT_ROLLBACK_DETECTED

Source: Microsoft WinError.h

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