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I was downloading a network packet sniffer when MSE properly warned me about it. I responded to allow the program, since I didn't want it quarantined or deleted.

Now that I'm done with the sniffer utility and have deleted it from my system, I wanted to reset MSE's response to the file, but can not find an easy way of doing so.

Any ideas?

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Simply launch Microsoft Security Essentials, go to the Settings tab, go down to Excluded Processes and you should see it there. Just highlight and delete!

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It was not a process, it was a downloaded file that generated the alert – Noah Aug 3 '10 at 17:51
@Noah Look at the other two Excluded options - you should see it listed there. – William Hilsum Aug 3 '10 at 19:42
up vote 2 down vote accepted

Brute Force method: This works, but I would think there is an easier way...

Run command line as administrator:

C:>cd %ProgramFiles%\Microsoft Security Essentials
C:\Program Files\Microsoft Security Essentials>MpCmdRun -RestoreDefaults

Within seconds, a notice appeared about the program in question.

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