Diagnostics Policy Service won't start

[squire]

I have a problem with Vista Home Premium (surprise!)

I have a connection to a home wireless network, which works: 2 computers
running XP can access it. Up until a couple of days ago mine was working too.
Now everytime I open internet explorer v.7, it won't display the webpage.
Network Diagnostics won't work because the Diagnostics Policy Service won't
start (even after trying to manually start as administrator) and I get the
msg: "Error 5: Access is denied" even though all users have full control and
read permissions.

I have also tried:
* ringing Microsoft tech support: they can't help me
* system restore: won't work or fails to complete restore
* run the repair function through bios (the computer just goes back to
startup with the same problem
* uninstall the most recent update (KB940510). Strangely, it appear in the
'update history' folder, but not in the 'installed updates' folder, so I
can't uninstall it.
* starting Windows Firewall or the DHCP client service - same problems

Any ideas short of a complete re-install of vista? I'm beginning to suspect
there's something wrong with one of the registry keys &/or system files, but
I'm not computer literate enough to know how/what to change.

Cheers

 

[Mark L. Ferguson]

I'm sure there are several technical ways to address this security error,
but perhaps the best way for you is to go at it wholesale. Unless you have
spent a lot of time with Permissions so far, resetting to defaults may be a
good solution for you. My thinking is, 'It worked before, so change it
back".

HOW TO Reset Security Settings Back to the Defaults:
http://support.microsoft.com/default.aspx?scid=kb;en-us;313222

If this diagnostic problem is just a side issue, you may have luck with IE
pages by simply clearing the IE cache. IE, tools menu, "Delete Browsing
History"
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Mark L. Ferguson

..

 

[moabs_my_life]

squire
I have the exact same problem word for word.
mine started on march 8th. I'm starting to think this hos some thing to do
with windows uptate. I can't do a repair and it won't start my wireless too.
I hope someone figures this out.

 

[Mary]

I also have the exact same problem and also am connected wireless but with no
internet connection, I have a suspision it is also a windows update that
caused it, please someone help us resolve this.

 

[Gordon]

I had the same thing happen last night, boy was I mad! It started when
I interrupted some sort of update. I fixed my computer by doing a
system restore. I didn't lose any files and my computer is working
great again. Just thought I'd share my info.

So don't interrupt updates in future!