Windows 8 and 8.1 Forums


How do I turn Windows Defender on?

  1. #1


    Posts : 19
    windows 8.1

    How do I turn Windows Defender on?


    when I look, it says the app has been turned off, but I can't find how/where to turn it on.

      My System SpecsSystem Spec

  2. #2


    Posts : 22,582
    64-bit Windows 10


    Hello Bill,

    The tutorial below can help show you how to turn on Windows Defender. However, if you have a 3rd party AV program installed, it will usually disable Windows Defender until the 3rd party AV is uninstalled. Of course, you would only uninstall it if you wanted to use Windows Defender instead.

    Windows Defender - Turn On or Off in Windows 8
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  3. #3


    Posts : 19
    windows 8.1


    What a mess. Okay, I had an expired Mcafee virus, tried to uninstall it, won't go. Tried some stated things, nothing works. Decided no Defender, I'll do Avast. Go to Filehippo, dload wont take. Go to Avast homepage, clk on free down download, it starts. Clk on 'run', wont go, says signature is corrupt...same if I clk 'save'. Gave up on that.

    Tried Avira. Won't download from the Filehippo page, just like Avast wouldn't, had to go to Avira homepage. Got it done. But I'm running a scan with it, and after 3 hours it's only 49% done.....does that seem right? And I still can't uninstall the expired Mcafee that still shows in control panel, even after doing the things suggested. Being expired, does it still matter that I can't get it to uninstall?

    By the way, it's so easy to make a mistake on the Avast, or other downloads from Filehippo. Click on Avast, goes to next page, and underneath "Avast" is giant blue "Download Now" button.....but not for Avast, for one of those 'speedi-fix-my-comp' things, and very tiny letters saying "Advertisement".
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  4. #4


    Posts : 22,582
    64-bit Windows 10


    If you haven't already, you might see if the McAfee Consumer Product Removal (MCPR) may be able to remove it and help.

    https://service.mcafee.com/webcenter...%3Dbmf2n3yav_4
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  5. #5


    Posts : 19
    windows 8.1


    Wont work, when I try, and it asks for verification to see if you're real, I put in the numbers and letters, etc,, click next, and the verification just keeps coming back up.
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  6. #6


    Posts : 22,582
    64-bit Windows 10


    Is this what you used?

    2. Download and run the McAfee Consumer Product Removal (MCPR) tool:

    a. Download the MCPR tool from http://us.mcafee.com/apps/supporttools/mcpr/mcpr.asp and save it to a temporary folder on your computer.

    IMPORTANT: Because the MCPR tool is updated periodically, always download a new copy before each use.
    b. Navigate to the folder where you saved the file, and double-click MCPR.exe.
    c. If you see a User Account Control dialog box, click Yes.
    d. At the McAfee Software Removal screen, click Next.
    e. At the End User License Agreement (EULA) dialog box, click Next to accept the agreement.
    f. When prompted, type the Captcha information exactly as seen (it is case-sensitive) and then click Next.
    NOTE:This steps minimizes accidental executions of MCPR.
    g. If you have Family Protection installed, you will need to follow these steps. Otherwise, continue to Step h.

    I. Type your Family Protection Administrator name and Password, then click Next.
    ii. If authentication fails, follow the on-screen instructions to obtain an uninstall code.

    h. When you see the message CleanUp Successful, restart your computer because your McAfee product will not be fully removed until after the restart.

    IMPORTANT: If you see the message Cleanup Unsuccessful, save your MCPR log files for analysis by Technical Support:

    i. At the Cleanup Unsuccessful dialog box, click View Logs. Your troubleshooting log will open in a Notepad window.
    ii. Click File, Save As, and save the file to your Desktop. Name the file MCPR_date.txt (for example, MCPR_Jan10_16.txt).
    iii. Contact McAfee Technical Support and provide the log file to your technician for troubleshooting.
    i. Confirm that all McAfee products have been removed from your computer before continuing to the next step.
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  7. #7


    Posts : 19
    windows 8.1


    yes that's what I tried to use, just like you suggested above.
      My System SpecsSystem Spec

  8. #8


    Posts : 22,582
    64-bit Windows 10


    If Avast is working fine for you, then that should be fine. Otherwise, you may need to refresh or reset Windows to get rid of McAfee.
      My System SpecsSystem Spec

  9. #9


    Posts : 19
    windows 8.1


    I guess you meant to say if "Avira" is working for me. Looks like I'll just have to live with the occasional annoying Mcafee reminders to get me to subscribe.

    Is it unusual for the Avira scan to have taken almost 5 hours? And it did not find any problems.
      My System SpecsSystem Spec

  10. #10


    Posts : 22,582
    64-bit Windows 10


    It depends on how much your scanning, but a full system scan could take a long time to finish.

    You might also contact McAfee support to see what they say about completely removing it.
      My System SpecsSystem Spec

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