Windows Defender in Windows 8.1 Will Not Turn On

Anonymous
2013-11-24T01:31:23+00:00

I recently updated Windows 8 to Windows 8.1.  Windows Defender had been on in Windows 8 and even after the update to 8.1.  I turned it off momentarily but have been unable to turn it back on.  To my knowledge, I have no other anti-virus programs running.  How can I turn it back on?

Windows for home | Previous Windows versions | Security and privacy

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  2. Anonymous
    2015-04-09T22:50:47+00:00

    need someone in the know to respond. thx.

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  3. Anonymous
    2015-04-10T00:50:39+00:00

    Me also ...  hoping for a maintenance download soon.

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  4. Anonymous
    2015-04-10T01:09:01+00:00

    I have basically the same problem, methods 1 & 2 did not work , I keep getting" Error code Ox80073afc".

          I'm hoping for a maintenance download soon  :I

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  5. Anonymous
    2015-04-11T06:47:10+00:00

    In order to download Microsoft Defender it was necessary for me to go to the McAfee website & download the McAfee removal tool. It worked like a charm. As long as McAfee is set up as your security software, it won't let you use another security software..

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