Should I have windows defender and avast at the same time?

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jordandog1000

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Dec 26, 2017
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I have windows defender and avast antivirus running at the same time and I want to know if that is a problem, or should I disable windows defender?
 
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You should run only one anti-virus application at a time. Running multiples can cause conflicts between them. This will also put an unnecessary load on your system (processing-wise).

Avast-Team

Commendable
Mar 3, 2017
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Generally, it's recommended to only have one "active" scanning program in place at a time. So for example, with Avast, you can have our nextgen protection running and actively protecting you, with Defender available for supplementary on-demand scans if you wish. Installing Avast should disable Windows Defender automatically, and Windows should report that "you are using Avast antivirus" or similar :)
 
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