MpCmdRun.exe not running scan

When entering the following into a CMD command prompt
C:\Program Files\Windows Defender>MpCmdRun.exe -Scan -scantype 1
It returns the following;

Signature update started . . .
Signature update finished. No updates needed

However, there is nothing about it running a scan. When checking the log file in
C:\ProgramData\Microsoft\Microsoft Forefront\Client Security\Client\Antimalware\Support there are no entries for the scan.
Does anyone know how I can get it to scan from the command line? Is there another setting / switch that I have to implement ?

Thanks in advance
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MattyS82Asked:
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BillDLCommented:
The command line syntax and option is fine, according to the help file   (MpCmdRun.exe -h or /?), and I am positive that the only option that you have to specify the target drive or directory to scan is when you choose the Custom Scan type 3.

MpCmdRun.exe -Scan -scantype 1

From a batch file, try forcing an update signature check first and then see if the scan command works.  I can't verify the path to your executable because I have Microsoft Security Essentials on Windows XP.  It uses the same MpCmdRun.exe program for command line scanning and updating though.
@echo off
"C:\Program Files\Windows Defender\MpCmdRun.exe" -SignatureUpdate -MMPC
"C:\Program Files\Windows Defender\MpCmdRun.exe" -Scan -scantype 1
pause

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The commands should run concurrently, waiting for the update command to finish before starting the scan one.
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MattyS82Author Commented:
BillDL,

Thanks for the comment. I will try that and get back to you. Sorry, for the late reply.

Matt
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MattyS82Author Commented:
Thanks for your input. Sorry, for the late reply was away from my desk for a few days
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