Event ID 1015 — Windows Startup Availability

Applies To: Windows Server 2008 R2

Windows startup availability checks whether the system is able access the boot sector on the system disk. This boot sector, which can be managed either by the basic input/output system (BIOS) or Extensible Firmware Interface (EFI), then loads the rest of the boot blocks. The boot sector loads the Windows Boot Manager, which accesses the Boot Configuration Data store and uses the information to run all of the processes and services required to start the operating system after the computer is switched on. 

Event Details

Product: Windows Operating System
ID: 1015
Source: Microsoft-Windows-Wininit
Version: 6.1
Message: A critical system process, %1, failed with status code %2. The machine must now be restarted.


Fix a failed process or service

During Windows startup, Windows starts the services that are necessary for the operating system to function properly.  

To perform this procedure, you must have membership in the local Administrators group, or you must have been delegated the appropriate authority.

To fix a failed process:

  1. Click Start, point to Administrative Tools, and click Event Viewer.
  2. Navigate to Windows Logs, and click System.
  3. The event log as referenced by the Event ID will show the process or service that failed.
  4. Click Start, type services.msc, and then press ENTER.
  5. If the **User Account Control **dialog box appears, verify that the displayed action is what you requested, and then click Continue.
  6. In the Services pane, locate the service that failed to start.
  7. Right-click the service, and then click Start.



To verify that the Windows startup availability process completed successfully after logging on, check the Event Viewer to verify all system processes and services designated to run at startup are set up and synchronized properly.

  1. Click Start, point to Administrative Tools, and then click Event Viewer.
  2. In the Event Viewer (Local) pane, double-click Windows Logs.
  3. Select the System log. A white exclamation point in a red circle indicates that a service or driver is stopped or has failed to start. A black exclamation point in a yellow triangle indicates warnings, such as low disk space. For more information about an entry, click the entry, and read the General tab.

Windows Startup Availability

Core Security