Windows Defender Stops Working

Windows Defender stops working.  When I restart the serive, I get the following error message:  "Could not start the windows defender service on local computer.  Error 3: The system cannot find the path specified."  I am running on Windows XP Home Edition OS.  Windows Defender version is 1.1.1593.0.
dl09440Asked:
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dl09440Connect With a Mentor Author Commented:
I managed to solve my problem with the help of my 84 year old dad.  At his suggestion, I ran the System File Checker program, which I did not know it existed.  After clicking on Start, then Run, I entered sfc /scannow and pressed enter.  It took about an hour to for the file checker to run.  I restarted the computer even though it did not prompt me to do so.  When it finished starting, I had an indication to install two Windows Update files.  After installing the Windows Updates and again restart the computer, I installed Windows Defender.  It did a complete scan and it has been running properly for several days now.
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maxis2cuteCommented:
the easiset way to resolve this is go tto control panel, add remove programs, and remove windows defender.

Then reinstall from Microsoft web site.
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dl09440Author Commented:
I already tried this several times.  Defender runs for about a minute then stops abbruptly.  I also downloaded a critical update to NET Framework 2 from Windows Update.  I re-installed Defender.  This time it ran about 4 minutes performing a scan, then it abbruptly stopped.
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maxis2cuteCommented:
sorry, i wish i could help more with this but this problem is very odd, did you check any knowledge base articles on microsoft?
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dl09440Author Commented:
I did not really see a solution on microsoft knowledge based artliciels.  Thanks for the ideas.
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KCTSCommented:
I had a very similar issue - see http://www.experts-exchange.com/OS/Microsoft_Operating_Systems/Windows/Windows_Vista/Q_23044552.html
I ended up having to re-install Vista !
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dl09440Author Commented:
I read that list of solutions before I asked my question.  I saw you had VISTA, but my OS is XP.  My Binary Path Name is empty.  If someone could tell me how to enter the Binary Path Name, that may fix my problem.
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