Windows 10: Windows Defender Error 577, Cannot verify the digital signature

Discus and support Windows Defender Error 577, Cannot verify the digital signature in Windows 10 News to solve the problem; [ATTACH]When a hardware or software is installed and does not come with a digitally […] This article Windows Defender Error 577, Cannot verify the... Discussion in 'Windows 10 News' started by WinClub, Dec 2, 2020.

  1. WINCLUB
    WinClub New Member

    Windows Defender Error 577, Cannot verify the digital signature

    WinClub, Dec 2, 2020
    #1
  2. PAUL T LYNCH
    PAUL T LYNCH Win User

    WINDOWS DEFENDER NOT WORKING ERROR 577 GIVEN AS REASON

    When I try to run Windows Defender I get a message that Windows could not start Windows Defender. Error 577: Windows cannot verify the digital signature for this file. A recent hardware or software change might have installed a filed that was signed incorrectly
    or damaged, or that might be malicious software from an unknown source.

    This seems to be a common problem.

    Any suggestions?
     
    PAUL T LYNCH, Dec 2, 2020
    #2
  3. CHANTAL234
    Chantal234 Win User
    ERROR 577: Windows Defender not working.

    I downloaded CCleaner and AVG when I received my laptop because I was not aware that Windows Defender existed. I was informed that I should have Microsoft Secuirty Essentials (which Windows Defender has). I uninstalled CCleaner and AVG, and has tried to
    manual start Windows Defender via Services (local) from another post I read but I am received ERROR 577: Windows could not verify the digital signature for this file etc....

    Please help!!
     
    Chantal234, Dec 2, 2020
    #3
  4. PRAJWALMALVI
    PrajwalMalvi Win User

    Windows Defender Error 577, Cannot verify the digital signature

    Windows Defender

    * Merged

    Error 577: Could not verify digital signature.

    when ever i try to start services of Windows Defender Antivirus this error comes
     
    PrajwalMalvi, Dec 2, 2020
    #4
Thema:

Windows Defender Error 577, Cannot verify the digital signature

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