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Windows Installer and msconfig error

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Since a recent automatic update, I’m getting nothing but problems with my XP installation.
I’ve done a system restore to no avail. I’ve run chkdsc, and defragged over and over, to no avail. Same with the Virus scan.
When trying to repair my Norton Internet Security I get the message ‘Windows Installer Service could not be accessed……’. I’ve downloaded and installed the latest Installer from Microsoft, to no avail!!
When trying to open MSCONFIG.exe I get ‘An Access Denied Error was returned while attempting to change a service. You may need to log on using an Administrator account to make the specified changes’. I AM AN ADMINISTRATOR. I’ve logged on as Administrator and still get the same messages! HELP!!!!

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Reply To: Windows Installer and msconfig error

In reply to Windows Installer and msconfig error

You may have some kind of spy\ad-ware installed. I would run SpyBot, AD-aware and CWShredder. I know there was a variant of the CWS that would not let you open MSCONFIG or Regedit. I would run CWShrreder first and then the other programs. You may also want to run an online virus scan.

You can get the CWShredder and run an online virus scan here:

http://housecall.trendmicro.com/

Try this

In reply to Windows Installer and msconfig error

I have seen that same message and when i disabled my access protection from my McAfee console it went away.

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