Outlook downloads extremely slow in production mode

I have a computer in an office that downloads extremely slow in Production mode.  It runs fine on the internet if Outlook is not trying to download.   In Safe Mode downloading in Outlook runs very fast.   I have disabled all Outlook add-ins.   It is Wind 7 64 bit running Office 2007.    It ran perfectly for about 1 1/2 years.    Any ideas?
syssolutAsked:
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syssolutAuthor Commented:
I have also re-installed the network card driver.   This is not using an exchange server and other computers using outlook have no issues.
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SommerblinkCommented:
Have you tried temporarily disabling any security software you may have installed on the computer, like AV/antimalware?
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syssolutAuthor Commented:
Yes, it did not make any change by shutting them down.
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syssolutAuthor Commented:
I also ran anti-malware apps to remove any type of threats.
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SommerblinkCommented:
Since the slowness doesn't happen when you do a safe boot, but does happen when you start outlook with everything disabled, the problem has to be some third-party software which is installed on the computer, but not specifically with Outlook.

Next thing to do is to see what changed. Best way to ascertain that is to look at the "Reliability Monitor". Just type in Reliability in to Windows Search and click on "View Reliability History".

This will give you a detailed breakdown of everything that has happened to this computer, including software updates, additions and removals. Look for anything that happened around the time this started happening.

If you can't find anything obvious and you're not able to wipe-reload, then my next suggestion would be to start up "msconfig", configure the computer for a "Diagnostic startup", and then start adding in the services and startups in small groups until you can isolate what program is causing this to happen.
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syssolutAuthor Commented:
Thanks r suggestions.   I disabled all the add-ons for Internet Explorer and it worked perfectly.    I am not sure why the add-ons for IE affected Outlook, but it cleared it up when I disabled them.
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