DOCUMENT:Q184124 09-AUG-2001 [winnt] TITLE :Service Still Runs Although WinNT Prompts to Turn Off Computer PRODUCT :Microsoft Windows NT PROD/VER:WinNT:4.0 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows NT Server version 4.0 - Microsoft Windows NT Workstation version 4.0 ------------------------------------------------------------------------------- SYMPTOMS ======== Disk activity remains constant even though Windows NT Server or Workstation displays the following message: It is now safe to turn off your computer. CAUSE ===== This behavior can be caused by a service not properly notifying the Windows NT Service Control Manager (SCM) that it is still running. It is the service's responsibility to let the SCM know that it is still active. If the SCM is aware that a service is still pending shut down, it, by default, will wait 20 seconds before killing the service. If the service has incorrectly notified the SCM, the SCM may assume that the service has shut down. This behavior has been seen with virus-scanning software RESOLUTION ========== As a workaround, verify that a scheduled scan is not due to run before you start the Shut Down procedure. MORE INFORMATION ================ For other services experiencing the problem, the amount of time that Windows NT waits for services to shut down can be increased using the WaitToKillServiceTimeout value name in the registry. For additional information on increasing the wait time, please see the following article in the Microsoft Knowledge Base: ARTICLE-ID: Q146092 TITLE : How to Increase Shutdown Time For Services To Close Properly Additional query words: HD light flash flashes blink blinking blinks disk drive restart ====================================================================== Keywords : Technology : kbWinNTsearch kbWinNTWsearch kbWinNTW400 kbWinNTW400search kbWinNT400search kbWinNTSsearch kbWinNTS400search kbWinNTS400 Version : WinNT:4.0 Issue type : kbprb ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2001.