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Why is our network slower when Trend Micro Antivirus and Antispyware was installed on our domain controller?

Posted on 2007-11-27
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Last Modified: 2013-12-04
Ever since we installed this software our system got noticiably slower especially opening client desktop applications and email attachment. Is there a setting we missed to speed up performance? Thanks.
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Question by:gbaguhin
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Crownappraisal earned 500 total points
ID: 20360046
Most likely the performance reduction is due to Trend Micro doing on access scans. Every file you open is being scanned with the antivirus and spyware software. You can change your policies within trend micro not to do E-mail attachment scans and on access scans this should boost your performance back to normal. Do you have any other software protecting your clients from attachments that may be viruses? If not i would leave the e-mail scans on.
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by:gbaguhin
ID: 20360254
Crownappraisal, thanks for your solution. I will try it and let you know what happens.
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Author Closing Comment

by:gbaguhin
ID: 31411262
Thanks Crownappraisal. We tested our system and your diagnosis turned out accurate.
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