windows defender not working


  1. ajayhirur
    Posts : 40
    windows 10
       New #1

    windows defender not working


    I cannot start windows defender. It say “unexpected error. sorry, we ran into a problem. please try again”.
    I tried several workarounds I found in this forum and other forums:

    1. Remove other antiVirus/AntiSpayware programs -> I never had any...
    2. Enable default Administrator account to see if issue exist -> It is the same even for default Administrator account.
    3. Set all registry entries with DisableAntiSpyware / DisableAntiVirus to zero. -> value was already zero (or key was missing)
    4. Try start "Windows Defender Antivirus Service" -> Service dialog is all disabled. start/stop/pause/resume buttons are all disabled. event in default administrator account...
    5. Try to start "Windows Defender Advanced Threat Protection Service" -> When clicking the start button, it try to start but prompt an error: "The Windows Defender Advanced Threat Protection Service on local computer started and then stopped"
    6. change Local Group Policy for windows defender (both user and computer level) to "Not configured" -> the value was already "Not configured"...
    7. start windows without any startup program -> did not help
    8. start windows in "safe boot" mode -> did not help
    9. start windows after disabling all non-windows services -> did not help
    10. run sfc /scannow -> did not help
    11. scan computer with Malwarebytes -> fond nothing
      My Computer
    Quote Quote

  3. dalchina
    Posts : 43,009
    Win 10 Pro (22H2) (2nd PC is 22H2)
       New #2

    Hello, the forum asked you to specify your full Windows build number when you wrote your post so we don't have to keep asking for it.

    I suggest you perform an in-place upgrade repair install which like any upgrade keeps all progs and data.
    Tutorial available if needed.

    You need to use an iso file (or bootable disk) of the same major build as you have now- which I don't know.

    All builds are freely downloadable - see relevant tutorial (see Tutorials shown above).
      My Computers
    Quote Quote

  4. ajayhirur
    Posts : 40
    windows 10
    Thread Starter
       New #3

    os build 19041.423
      My Computer
    Quote Quote

  6. dalchina
    Posts : 43,009
    Win 10 Pro (22H2) (2nd PC is 22H2)
       New #4

    Thank you for your reply.


    As above, try an in-place upgrade repair install. If you already have a 2004 iso file you can use that.
      My Computers
    Quote Quote

  7. ajayhirur
    Posts : 40
    windows 10
    Thread Starter
       New #5

    will "upgrade this pc now" if i choose that will it also work instead of creating iso image
      My Computer
    Quote Quote

  8. dalchina
    Posts : 43,009
    Win 10 Pro (22H2) (2nd PC is 22H2)
       New #6

    If you're already using build 2004 to what would you be upgrading? Reiterate in-place upgrade repair.
      My Computers
    Quote Quote

  9. ajayhirur
    Posts : 40
    windows 10
    Thread Starter
       New #7

    i need latest iso ,, how to download it fast ,, create media tool progresss is downloading forever 0%,, is there another way to download iso image 19041.423 quickly
      My Computer
    Quote Quote

  10. dalchina
    Posts : 43,009
    Win 10 Pro (22H2) (2nd PC is 22H2)
       New #8

    Thank you for you reply. I can't answer for your internet speed, restrictions, location or anything else that may be responsible.

    Tutorial: have you looked at this?
    windows defender not working-1.png
      My Computers
    Quote Quote

 

  Related Discussions
Windows Defender Scheduled Scan Working Since its Last Update
in AntiVirus, Firewalls and System Security

I've noticed that since the last Windows Defender update that its scheduled scan runs successfully every day now. It previously would always return a result of (0x7). It would then run successfully 1 time only after a reboot. I was just wondering if...
I've followed instructions for setting up Windows Defender updates with task scheduler but it's not working. Windows defender opens up at the scheduled times but just does nothing. Guides I followed: ...
how do I get Windows Defender working after I uninstall McAfee?
in AntiVirus, Firewalls and System Security

What would suggest I do, McAfee came pre installed on my HP Laptop. My "free" subscription ends in a few days and I noticed that my Windows Defender does NOT work. It is grayed out because of McAfee as I have learned reading other posts on this...
Hi, how can I disable Windows Defender Real-time protection but keep the Windows Defender app available and working? I've seen ways to disable Windows Defender Real-time protection in W10, however this involved disabling Windows Defender as a...
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

 © Designer Media Ltd
All times are GMT -5. The time now is 14:10.
Find Us




Windows 10 Forums