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Vista's Diagnostic Service Host Service

April 8th, 2007 · 9 Comments · 9,117 views
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ServicesWindows Diagnostic Infrastructure (WDI) is a collection of diagnostic tools that can help find the source of many common disk, memory and network problems. In addition, it can warn you of impending failures so you can either react to fix them, or at least save your data while you can. The Diagnostic Service Host works with Diagnostic Policy Service (DPS) as a component of WDI. If you don’t find any value in Vista’s diagnostic features you can disable this service, though any application that makes use of it may then not function correctly, and because this service is set to manual by default, there will be little benefit to disabling it.

Display Name:
Diagnostic Service Host
Service Name:
WdiServiceHost
Process Name:
svchost.exe
Description:
The Diagnostic Service Host enables problem detection, troubleshooting, and resolution for Windows components. If this service is stopped, diagnostics will no longer function. If this service is disabled, any services that explicitly depend on it will fail to start.
Path to Executable:
%windir%\system32\svchost.exe -k wdisvc
Default Startup:
  • Home Basic: Manual
  • Home Premium: Manual
  • Business: Manual
  • Enterprise: Manual
  • Ultimate: Manual
Log On As:
Local Service
Desktop Interaction:
No
Depends On:
None
Required For:
None
Memory:
N/A
CPU:
N/A
Do you know something about this service that I don't? Please leave a comment below so I, and everyone else reading this, can benefit from your knowledge!

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Comments

  • Dave Collazo

    May 29, 2008 at 12:14 am

    Please help…My Diagnostic Service Host is not working.When i go to services to enable,it is grayed out and i can’t start it back even if i try as Admin.Anyone know how to fix this problen? Please eMail me at davecollazo01@yahoo.com

  • MCH

    Dec 18, 2008 at 5:46 pm

    Please help…My Diagnostic Service Host is not working.When i go to services to enable,it is grayed out and i can’t start it back even if i try as Admin.Anyone know how to fix this problen? Please eMail me at mchwsu@hotmail.com

  • larnl777

    Feb 12, 2009 at 2:59 am

    I have vista32bit with
    diag policy service on start but

    unable to start diag service host.

    going to see if running on safe mode will bring back the default settings.

  • larnl777

    Feb 12, 2009 at 3:04 am

    going to run safe mode
    in order to load default settings for diag serv host.

  • larnl777

    Feb 12, 2009 at 3:05 am

    wha

  • Pman

    Mar 5, 2009 at 4:50 am

    The fact that the service is not allowed to interact with the desktop results various settings being grayed out.

  • aL

    Mar 23, 2009 at 11:19 am

    im some cases in the win7 beta this service causes poor windows explorer performace esp, when opening folders. try disabeling these services if you’re having problems with that

  • smokinjj

    Mar 30, 2009 at 12:10 pm

    Help. I get an error message on Windows Vista that Wdi Service Host for writing Error 5: Access Denied. How do we fix this?

  • Geoff

    Apr 3, 2009 at 10:58 pm

    i have same prob HELP!

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