Windows 10: Windows Defender doesn't start

Discus and support Windows Defender doesn't start in AntiVirus, Firewalls and System Security to solve the problem; this morning, when booting my computer, Windows Defender and Windows Firewall refused to start. In the Services list I saw that folliwing services were... Discussion in 'AntiVirus, Firewalls and System Security' started by aliskander, Aug 17, 2019.

  1. ALISKANDER
    aliskander Win User

    Windows Defender doesn't start


    this morning, when booting my computer, Windows Defender and Windows Firewall refused to start.
    In the Services list I saw that folliwing services were disabled:

    Windows Defender Antivirus service (WinDefend)
    Windows Defender Firewall (mpssvc)

    I could not change the disabled state of this 2 services (in properties all is gray)

    My OS is Windows 10 Home Edition Version 1903 (OS Build 18362.295)

    In the Windows Security Application I see a red mark in the Virus & threat protection shield.

    Can anyone help me please?

    :)
     
    aliskander, Aug 17, 2019
    #1
  2. BETOLP
    BetoLP Win User

    Windows doesn`t start. Authomatic repair doesn`t work.


    Thanks again!!

    I`m sorry I had not noticed that the text on the picture was in spanish. It says that windows has replaced some damaged clusters in "name" file and "directory". Then, at the end "an unspecified error occurred (75736e6a726e6c2e 4f6)".

    I`ll do it and I`ll be updating this thread when I have the report.

    - - - Updated - - -

    I ran SeaTools. These are the results:

    Windows Defender doesn't start [​IMG]


    Does it mean my HDD is useless?
     
    BetoLP, Aug 17, 2019
    #2
  3. BETOLP
    BetoLP Win User
    Windows doesn`t start. Authomatic repair doesn`t work.


    Thanks for your answer, ken!
    I deleted all my data. I had have it backed up.

    I did a clean installation using the windows media creation tool (usb option).

    No, I didn`t. I thought a clean installation would solve the problem.

    After posting my previous message, I did it.


    Windows Defender doesn't start [​IMG]


    After chkdsk, I close cmd and tried to boot and the laptop just turned it off. This morning I`ve restarted it and automatically windows did a repair. Windows has booted and it seems that the repair tool has removed chrome and acrobat pdf reader (the only two programs I had installed after reinstalling windows).

    Now Windows is installing updates and restarting my lapop, I`m kind of frightened. I don`t want it to happen again. Anyhow, I want to know what has brought the issue

    I`ve been looking for information about the error code at the end of the picture and I didn`t get anywhere.
     
    BetoLP, Aug 17, 2019
    #3
  4. CYRRUSV
    CyrrusV Win User

    Windows Defender doesn't start

    hd6950 to hd 6970

    ok
    i ve tried everything:with atiflash from dos,winflash.step by step with bios powercolor hd 6970 from the database.
    nothing,doesn´t work.any suggestion????
     
    CyrrusV, Aug 17, 2019
    #4
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Windows Defender doesn't start

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