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

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

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  1. Anonymous
    2015-07-02T07:56:25+00:00

    I cannot get windows defender turned on. I have an hp and it is turned off everything I have done to try and turn it on gives me windows defender is turned off

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  2. Anonymous
    2015-07-02T08:07:45+00:00

    I cannot get windows defender turned on. I have an hp and it is turned off everything I have done to try and turn it on gives me windows defender is turned off

    As https://answers.microsoft.com/en-us/profile/7364dc73-c954-4722-a16c-fba6b21015bfStephen Boots already said in the post directly above your post:

    Please start your own new question with details about your system, problem, and steps taken so far.

    http://answers.microsoft.com/en-us/page/faq#faqAskQuestion1

    How to ask a question in forums:

    http://support.microsoft.com/kb/555375

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  3. Anonymous
    2015-07-16T23:38:38+00:00

    I was going crazy! This worked great! Now I feel stupid, the fix was so easy!

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  4. Anonymous
    2015-07-29T14:02:29+00:00

    Mine works now. All i did was to uninstall the 3rd party anitvirus that came with my laptop, then enabled the  windows defender.

    My PC feels safe now.

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  5. Anonymous
    2015-07-29T16:10:23+00:00

    Thanks, It works like magic.

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