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Windows Defender Issues

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#1 Hunter2480


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Posted 01 December 2015 - 03:55 PM

Hi there,


I have a acer computer running windows 8.1 I am having issues with my windows defender. It keeps telling me that windows defender is turned off and is being managed by my system administrator. and when I try to start it manually I keep getting error 577. Please help me figure this out.

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#2 dc3


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Posted 02 December 2015 - 10:25 AM

Do you have another antivirus installed?

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