Windows 10: cannot open windows defender

  1. Posts : 1
    windows 10 64bit
       31 Mar 2016 #1

    cannot open windows defender

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    I am using Lenovo g40-45. whenever I click 'open windows defender', the message on the picture attached flashes. real time protection is on. your help is highly appreciated! thank you!
      My ComputerSystem Spec

  2.    01 Apr 2016 #2

    Do you have any other, resident 3rd party AVs installed ?
      My ComputersSystem Spec


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