Microsoft Security Essentials and Windows Defender mutually exclusive


  1. blumesan
    Posts : 88
    Win 7 x64
       New #1

    Microsoft Security Essentials and Windows Defender mutually exclusive


    Running win7x64.
    If I have Microsoft Security Essentials "active" I am unable to turn on Windows Defender.
    If I turn off MSE then I can turn on Defender.
    If I then return to MSE and activate it, Defender is automatically turned off.

    Is this normal behavior?
    If I can only run one of these, which is the preferred choice?
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  3. oscer1
    Posts : 1,670
    win 10
       New #2

    Hi, yes that is normal behavior. i would use MSE over defender.
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  4. Layback Bear
    Posts : 25,847
    Windows 10 Pro. 64/ version 1709 Windows 7 Pro/64
       New #3

    Mse is designed to turn off Defender in Windows 7.

    As oscer1 has posted. Use MSE.
    Then check if the Windows 7 built in firewall is on.

    Start Orb and type in Windows Firewall and tick on it. It should indicate that the Windows 7 firewall is on.
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