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Question

dependency service/group failed to start; cannot start diagnostic policy service

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I have windows vista home premium. I've not had a problem connecting to the internet before. Then just today, I cannot connect to my router, either by wireless or ethernet.  The router is fine, as my housemates are able to connect.  The signal strength is also excellent, but my computer is 'connected with limited access'.   The message I get is: 'Connection status unknown. The dependency service or group failed to start.'  When I click Diagnose and Repair, it says Network Diagnostics cannot run because the Diagnostics Policy Service is not running'  It then gives me the option to open the Service Control Manager to manually start the Diagnostics Policy Service.  This opens a Services window with a massive list of stuff I don't understand.  I've searched for solutions to the problem, and none have worked.  Any advice greatly appreciated.
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lesleyb84

lesleyb84

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Answer

Hello, Lesley

Thank you for using the Microsoft Answers Forum!

The following information was taken from: http://support.microsoft.com/kb/943996

Modifying REGISTRY settings incorrectly can cause serious problems that may prevent your computer from booting properly. Microsoft cannot guarantee that any problems resulting from the configuring of REGISTRY settings can be solved. Modifications of these settings are at your own risk!

It is possible the permissions on a specific registry key was altered. You can try correcting this by going to Start, type regedit in the command prompt, right click the regedit program and select Run as Administrator. In the Registry Editor click the arrow to expand the selection, go to HKEY_LOCAL_MACHINE, SYSTEM, CurrentControlSet, Services, DPS, right click Parameters and choose Permissions.  On the Permissions screen, select the TrustedInstaller user. If you do not see the TrustedInstaller user, click Add, type NT Service\TrustedInstaller and press OK. Ensure that the Full Control and Read permissions are checked for the TrustedInstaller user.

Let us know if this helps.

David
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David. F

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David. F
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And that's why you always leave a note.

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When you get to the Service Control Manager, scroll down to Diagnostics Policy Service and see if it is "Started".  If not, right click and select Start.  On my machine it says it is automatic, so it should start automatically. 
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NaplesSJC

NaplesSJC

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When you get to the Service Control Manager, scroll down to Diagnostics Policy Service and see if it is "Started".  If not, right click and select Start.  On my machine it says it is automatic, so it should start automatically. 
Thank you NaplesSJC

I just tried that.  I said 'Automatic', but I right clicked Start anyway, and got the message: 'Windows could not start the Diagnostic Policy Service on Local Computer; Error 5: Access is denied.' 

Any idea how I can get access?

I wonder if it has something to do with when I tried to do 'netsh' in 'cmd', it said I couldn't because I wasn't an administrator.  Rather irritating as it is just my laptop, not a work computer, so if I'm not the administrator I'd like to know what is!!

Thanks,

Lesley
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lesleyb84

lesleyb84

Was this helpful?

Answer

Hello, Lesley

Thank you for using the Microsoft Answers Forum!

The following information was taken from: http://support.microsoft.com/kb/943996

Modifying REGISTRY settings incorrectly can cause serious problems that may prevent your computer from booting properly. Microsoft cannot guarantee that any problems resulting from the configuring of REGISTRY settings can be solved. Modifications of these settings are at your own risk!

It is possible the permissions on a specific registry key was altered. You can try correcting this by going to Start, type regedit in the command prompt, right click the regedit program and select Run as Administrator. In the Registry Editor click the arrow to expand the selection, go to HKEY_LOCAL_MACHINE, SYSTEM, CurrentControlSet, Services, DPS, right click Parameters and choose Permissions.  On the Permissions screen, select the TrustedInstaller user. If you do not see the TrustedInstaller user, click Add, type NT Service\TrustedInstaller and press OK. Ensure that the Full Control and Read permissions are checked for the TrustedInstaller user.

Let us know if this helps.

David
Microsoft Answers Support Engineer
Visit our Microsoft Answers Feedback Forum and let us know what you think.
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David. F

Forum Moderator
David. F
Community Star
And that's why you always leave a note.

Was this helpful?

Hello, Lesley

Thank you for using the Microsoft Answers Forum!

The following information was taken from: http://support.microsoft.com/kb/943996

Modifying REGISTRY settings incorrectly can cause serious problems that may prevent your computer from booting properly. Microsoft cannot guarantee that any problems resulting from the configuring of REGISTRY settings can be solved. Modifications of these settings are at your own risk!

It is possible the permissions on a specific registry key was altered. You can try correcting this by going to Start, type regedit in the command prompt, right click the regedit program and select Run as Administrator. In the Registry Editor click the arrow to expand the selection, go to HKEY_LOCAL_MACHINE, SYSTEM, CurrentControlSet, Services, DPS, right click Parameters and choose Permissions.  On the Permissions screen, select the TrustedInstaller user. If you do not see the TrustedInstaller user, click Add, type NT Service\TrustedInstaller and press OK. Ensure that the Full Control and Read permissions are checked for the TrustedInstaller user.

Let us know if this helps.

David
Microsoft Answers Support Engineer
Visit our Microsoft Answers Feedback Forum and let us know what you think.

Hi David
Thanks very much, but I actually fixed the problem a few days ago - I just hadn't taken my system restore back far enough. Doesn't explain what went wrong, but at least I'm back online.
Lesley
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lesleyb84

lesleyb84

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Hi David,

I am facing the same issue, Unable to connect to internet.
Followed the above solution, Still facing the same error.
Any other option to correct ths?

Thanks
Blore2008
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blore2008

blore2008

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David,
I'm in the same situation as Blore2008. Any suggestions.
1433Roger
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1433Roger

1433Roger

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I'm in the same situation.  Tried adding the TrusedInstaller and no results.  Rebooted and tried again.  It seems the network diagnostics needs the diagnotics policy service to run.  Do you think it may be my network card?
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addladiero

addladiero

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this did not work for me. I tried it several times. another possible solution? trustedInstaller is still listed in group names
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johnMO53

johnMO53

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this did not work for me. I tried it several times. another possible solution? trustedInstaller is still listed in group names
DITTO FOR ME!!!  This is very frustrating.....  Does anyone have an answer?
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BigBlackBeaSSt

BigBlackBeaSSt

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I'm actually having the same issue but with Windows 7.  It sounds very similar to the windows vista problem. 

This problem happened to me after I installed Office 2003.

Can Microsoft work on a solution for this? and come up with a fix?

Thanks...

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Pancho Villa

Pancho Villa
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