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Resolved can not turn on windows defender

Discussion in 'Windows 10' started by SVEN, 2015/09/06.

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  1. 2015/09/06
    SVEN

    SVEN Well-Known Member Thread Starter

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    every time I start my laptop, I get this pop up

    Capture.PNG

    I go here Capture2.PNG

    and click on " use windows defender" but get the same pop up as above.

    how do I turn on windows defender?

    Thanks
    Sven
     
    SVEN,
    #1
  2. 2015/09/06
    SVEN

    SVEN Well-Known Member Thread Starter

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    I should add that the little icon that looks like a house with a green flag on top is running and tells me that I am protected.
    I guess that tells me that the error message is wrong?

    Sven
     
    SVEN,
    #2


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  4. 2015/09/06
    Evan Omo

    Evan Omo Computer Support Technician Staff

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    Hi SVEN. Do you have any other security programs installed on the machine? If you do then that would explain why Windows Defender reports that it is turned off.
     
    Evan Omo,
    #3
  5. 2015/09/06
    SVEN

    SVEN Well-Known Member Thread Starter

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    No, no other security programs, just ms free stuff
     
    SVEN,
    #4
  6. 2015/09/06
    Evan Omo

    Evan Omo Computer Support Technician Staff

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    So Windows Defender is the ONLY security program that you have on the machine?

    Did you have any other security programs on the machine previously?

    Try using this registry file to enable Windows Defender in this link, How to Turn On or Off Windows Defender in Windows 10.
     
    Evan Omo,
    #5
  7. 2015/09/06
    SVEN

    SVEN Well-Known Member Thread Starter

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    I tried the reg hack, but it still gives me the same pop up.
    Like I said above, windows defender seems to be running. the icon is green and tells me: PC Protected.

    any more suggestions?
    Thanks
    Sven
     
    SVEN,
    #6
  8. 2015/09/06
    Evan Omo

    Evan Omo Computer Support Technician Staff

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    Click Start< type in Command Prompt in the search box, right click Command Prompt and click on Run as administrator.

    Once the Command Prompt window opens type the following commands and hit enter after typing in each one:

    winmgmt /standalonehost

    winmgmt /resetrepository

    exit

    After the Command Prompt window closes, reboot the computer and see if Windows Defender opens properly now.
     
    Evan Omo,
    #7
  9. 2015/09/06
    SVEN

    SVEN Well-Known Member Thread Starter

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    Hi Evan,
    the first command came back with successful, the second came back with:
    wmi repository reset failed
    error code 0x8007041B
    Facility Win 32
    Description: a stop control has been sent to a service that other running services are dependent on

    any idea what that is all about?
    Thanks
    Sven
     
    SVEN,
    #8
  10. 2015/09/06
    Evan Omo

    Evan Omo Computer Support Technician Staff

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    Oh make sure you open the Services.msc window and stop the Windows Management Instrumentation Service and then try running the commands again.
     
    Evan Omo,
    #9
  11. 2015/09/06
    SVEN

    SVEN Well-Known Member Thread Starter

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    I still get the pop up, but when I go to Security and Maintenance, all is on or OK.
    Strange. under Notifications I once hat a notification telling me to turn on security essentials, I did, but still I get the pop up.
    anything else we can try?
    Sven
     
    SVEN,
    #10
  12. 2015/09/06
    Evan Omo

    Evan Omo Computer Support Technician Staff

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    Open Command Prompt like you did from my previous post and when the Command Prompt window opens type, sfc /scannow and hit enter.

    After SFC finishes, reboot the machine and see if that helps.
     
    Evan Omo,
    #11
  13. 2015/09/06
    SVEN

    SVEN Well-Known Member Thread Starter

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    sfc did not find any integrity violation ( I think that's what it said).
    I hit reboot, and now it sits there, black screen with the mouse pointer. the hard drive keeps blinking, but nothing is happening
    now what?
    Sven
     
    SVEN,
    #12
  14. 2015/09/06
    SVEN

    SVEN Well-Known Member Thread Starter

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    After 10 minutes of this, I turned it of and rebooted. it booted up, but I still have the pop up

    anything else we can try?
    Sven
     
    SVEN,
    #13
  15. 2015/09/06
    SVEN

    SVEN Well-Known Member Thread Starter

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    Evan, just thinking, should I install a 3rd party virus protection and then uninstall it?
    might that bring back windows defender?
    Sven
     
    SVEN,
    #14
  16. 2015/09/07
    Evan Omo

    Evan Omo Computer Support Technician Staff

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    Evan Omo,
    #15
  17. 2015/09/07
    SVEN

    SVEN Well-Known Member Thread Starter

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    OK, But, there is no mention of windows 10.
    what do I use?
    Sven
     
    SVEN,
    #16
  18. 2015/09/07
    SVEN

    SVEN Well-Known Member Thread Starter

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    Hi Evan,
    I think I got it.
    during the upgrade to win 10, it must have kept Microsoft Security Essentials as the anti virus software and with that disabled windows defender. After I took MSE of line windows defender came on and I enabled it.
    No more pop up.
    But: now I want to uninstall MSE and when I go to Programs and features, after clicking on uninstall, it tells me that I do not need MSE, but gives me no way to uninstall.
    it is still being loaded at startup, but is red and tells me that I am not protected.
    any way to uninstall it?
    Thanks
    Sven
     
    SVEN,
    #17
  19. 2015/09/07
    Evan Omo

    Evan Omo Computer Support Technician Staff

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    Evan Omo,
    #18
  20. 2015/09/07
    SVEN

    SVEN Well-Known Member Thread Starter

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    Will not run on win 10, I tried both versions
    Sven
     
    SVEN,
    #19
  21. 2015/09/07
    Evan Omo

    Evan Omo Computer Support Technician Staff

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    Use Revo Uninstaller to find Microsoft Security Essentials and uninstall it from the system.
     
    Evan Omo,
    #20
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