Windows Defender in Windows 8.1 Will Not Turn On

Anonymous

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?

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165 answers

Anonymous

2015-07-29T16:10:23+00:00

Thanks, It works like magic.
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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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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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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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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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