ML
    • Recent
    • Categories
    • Tags
    • Popular
    • Users
    • Groups
    • Register
    • Login

    Windows 10 Defender Won't Start After Malware or Ransomware

    IT Discussion
    defender anti-virus windows windows 10 malware ransomware
    9
    35
    2.3k
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • scottalanmillerS
      scottalanmiller
      last edited by

      If you run into this problem, you can remove to registry key folders and often remedy the situation.

      Go to:

      HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defende
      

      and

      HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Advanced Threat Protection
      

      Right click on each and "Delete". Reboot the machine, it will recreate the keys with default settings normally allowing Windows Defender to run again.

      travisdh1T PhlipElderP 2 Replies Last reply Reply Quote 4
      • travisdh1T
        travisdh1 @scottalanmiller
        last edited by

        @scottalanmiller That must've been a real PITA to figure out.

        scottalanmillerS 1 Reply Last reply Reply Quote 1
        • scottalanmillerS
          scottalanmiller @travisdh1
          last edited by

          @travisdh1 said in Windows 10 Defender Won't Start After Malware or Ransomware:

          @scottalanmiller That must've been a real PITA to figure out.

          Just a wee bit.

          1 Reply Last reply Reply Quote 0
          • PhlipElderP
            PhlipElder @scottalanmiller
            last edited by

            @scottalanmiller The aside that once owned the machine should be flattened that's good info. 🙂

            scottalanmillerS 1 Reply Last reply Reply Quote 0
            • scottalanmillerS
              scottalanmiller @PhlipElder
              last edited by

              @PhlipElder yeah.

              DashrenderD 1 Reply Last reply Reply Quote 0
              • DashrenderD
                Dashrender @scottalanmiller
                last edited by

                @scottalanmiller said in Windows 10 Defender Won't Start After Malware or Ransomware:

                @PhlipElder yeah.

                Why are you fixing it instead of rebuilding it?

                scottalanmillerS 1 Reply Last reply Reply Quote 0
                • scottalanmillerS
                  scottalanmiller @Dashrender
                  last edited by

                  @Dashrender said in Windows 10 Defender Won't Start After Malware or Ransomware:

                  @scottalanmiller said in Windows 10 Defender Won't Start After Malware or Ransomware:

                  @PhlipElder yeah.

                  Why are you fixing it instead of rebuilding it?

                  Because we have to.

                  1 Reply Last reply Reply Quote 0
                  • scottalanmillerS
                    scottalanmiller
                    last edited by

                    Most of the restart issues appear to be from Sophos, not ransomware.

                    1 Reply Last reply Reply Quote 0
                    • scottalanmillerS
                      scottalanmiller
                      last edited by

                      But if you want a long analysis, we did the numbers and because there is no fear of data theft, and only of system down time, the decision to fix, rather than replace, the environment was paid. It's purely a manufacturing situation and the only financial impact is to the ability to manufacture. Rebuilding would have impacted that more.

                      1 Reply Last reply Reply Quote 0
                      • DustinB3403D
                        DustinB3403
                        last edited by

                        I would think that Windows 10 Defender should continue working during and after malware or ransomware. Rather than just giving up and not operating. . . lol.

                        Also I highly recommend Cybereason RansomFree

                        scottalanmillerS DanpD 2 Replies Last reply Reply Quote 0
                        • scottalanmillerS
                          scottalanmiller @DustinB3403
                          last edited by

                          @DustinB3403 said in Windows 10 Defender Won't Start After Malware or Ransomware:

                          I would think that Windows 10 Defender should continue working during and after malware or ransomware. Rather than just giving up and not operating.

                          No application keeps working once it has been disabled.

                          DustinB3403D 1 Reply Last reply Reply Quote 0
                          • DustinB3403D
                            DustinB3403 @scottalanmiller
                            last edited by

                            @scottalanmiller said in Windows 10 Defender Won't Start After Malware or Ransomware:

                            @DustinB3403 said in Windows 10 Defender Won't Start After Malware or Ransomware:

                            I would think that Windows 10 Defender should continue working during and after malware or ransomware. Rather than just giving up and not operating.

                            No application keeps working once it has been disabled.

                            Nothing on the computer works if Defender is disabled? I've not seen that before.

                            scottalanmillerS 1 Reply Last reply Reply Quote 0
                            • scottalanmillerS
                              scottalanmiller @DustinB3403
                              last edited by

                              @DustinB3403 said in Windows 10 Defender Won't Start After Malware or Ransomware:

                              @scottalanmiller said in Windows 10 Defender Won't Start After Malware or Ransomware:

                              @DustinB3403 said in Windows 10 Defender Won't Start After Malware or Ransomware:

                              I would think that Windows 10 Defender should continue working during and after malware or ransomware. Rather than just giving up and not operating.

                              No application keeps working once it has been disabled.

                              Nothing on the computer works if Defender is disabled? I've not seen that before.

                              "Application" is the antecedent. Not "Defender."

                              DashrenderD 1 Reply Last reply Reply Quote 0
                              • DashrenderD
                                Dashrender @scottalanmiller
                                last edited by

                                @scottalanmiller said in Windows 10 Defender Won't Start After Malware or Ransomware:

                                @DustinB3403 said in Windows 10 Defender Won't Start After Malware or Ransomware:

                                @scottalanmiller said in Windows 10 Defender Won't Start After Malware or Ransomware:

                                @DustinB3403 said in Windows 10 Defender Won't Start After Malware or Ransomware:

                                I would think that Windows 10 Defender should continue working during and after malware or ransomware. Rather than just giving up and not operating.

                                No application keeps working once it has been disabled.

                                Nothing on the computer works if Defender is disabled? I've not seen that before.

                                "Application" is the antecedent. Not "Defender."

                                i.e. the ransomware disabled Defender

                                scottalanmillerS 1 Reply Last reply Reply Quote 0
                                • scottalanmillerS
                                  scottalanmiller @Dashrender
                                  last edited by

                                  @Dashrender said in Windows 10 Defender Won't Start After Malware or Ransomware:

                                  @scottalanmiller said in Windows 10 Defender Won't Start After Malware or Ransomware:

                                  @DustinB3403 said in Windows 10 Defender Won't Start After Malware or Ransomware:

                                  @scottalanmiller said in Windows 10 Defender Won't Start After Malware or Ransomware:

                                  @DustinB3403 said in Windows 10 Defender Won't Start After Malware or Ransomware:

                                  I would think that Windows 10 Defender should continue working during and after malware or ransomware. Rather than just giving up and not operating.

                                  No application keeps working once it has been disabled.

                                  Nothing on the computer works if Defender is disabled? I've not seen that before.

                                  "Application" is the antecedent. Not "Defender."

                                  i.e. the ransomware disabled Defender

                                  Or Sophos did. Hard to tell. We saw the same disablement where there was no infection.

                                  dbeatoD 1 Reply Last reply Reply Quote 0
                                  • DanpD
                                    Danp @DustinB3403
                                    last edited by

                                    @DustinB3403 said in Windows 10 Defender Won't Start After Malware or Ransomware:

                                    Also I highly recommend Cybereason RansomFree

                                    Product is no longer developed or supported.

                                    RojoLocoR 1 Reply Last reply Reply Quote 0
                                    • dbeatoD
                                      dbeato @scottalanmiller
                                      last edited by

                                      @scottalanmiller said in Windows 10 Defender Won't Start After Malware or Ransomware:

                                      @Dashrender said in Windows 10 Defender Won't Start After Malware or Ransomware:

                                      @scottalanmiller said in Windows 10 Defender Won't Start After Malware or Ransomware:

                                      @DustinB3403 said in Windows 10 Defender Won't Start After Malware or Ransomware:

                                      @scottalanmiller said in Windows 10 Defender Won't Start After Malware or Ransomware:

                                      @DustinB3403 said in Windows 10 Defender Won't Start After Malware or Ransomware:

                                      I would think that Windows 10 Defender should continue working during and after malware or ransomware. Rather than just giving up and not operating.

                                      No application keeps working once it has been disabled.

                                      Nothing on the computer works if Defender is disabled? I've not seen that before.

                                      "Application" is the antecedent. Not "Defender."

                                      i.e. the ransomware disabled Defender

                                      Or Sophos did. Hard to tell. We saw the same disablement where there was no infection.

                                      What version of Sophos? and did it have Intercept X?

                                      scottalanmillerS 1 Reply Last reply Reply Quote 0
                                      • scottalanmillerS
                                        scottalanmiller @dbeato
                                        last edited by

                                        @dbeato said in Windows 10 Defender Won't Start After Malware or Ransomware:

                                        @scottalanmiller said in Windows 10 Defender Won't Start After Malware or Ransomware:

                                        @Dashrender said in Windows 10 Defender Won't Start After Malware or Ransomware:

                                        @scottalanmiller said in Windows 10 Defender Won't Start After Malware or Ransomware:

                                        @DustinB3403 said in Windows 10 Defender Won't Start After Malware or Ransomware:

                                        @scottalanmiller said in Windows 10 Defender Won't Start After Malware or Ransomware:

                                        @DustinB3403 said in Windows 10 Defender Won't Start After Malware or Ransomware:

                                        I would think that Windows 10 Defender should continue working during and after malware or ransomware. Rather than just giving up and not operating.

                                        No application keeps working once it has been disabled.

                                        Nothing on the computer works if Defender is disabled? I've not seen that before.

                                        "Application" is the antecedent. Not "Defender."

                                        i.e. the ransomware disabled Defender

                                        Or Sophos did. Hard to tell. We saw the same disablement where there was no infection.

                                        What version of Sophos? and did it have Intercept X?

                                        Didn't check, but probably older. We were just removing it.

                                        dbeatoD 1 Reply Last reply Reply Quote 0
                                        • RojoLocoR
                                          RojoLoco @Danp
                                          last edited by

                                          @Danp said in Windows 10 Defender Won't Start After Malware or Ransomware:

                                          @DustinB3403 said in Windows 10 Defender Won't Start After Malware or Ransomware:

                                          Also I highly recommend Cybereason RansomFree

                                          Product is no longer developed or supported.

                                          My installs keep getting updates... Got any confirmation of this?

                                          black3dynamiteB DanpD 2 Replies Last reply Reply Quote 0
                                          • black3dynamiteB
                                            black3dynamite @RojoLoco
                                            last edited by

                                            @RojoLoco said in Windows 10 Defender Won't Start After Malware or Ransomware:

                                            @Danp said in Windows 10 Defender Won't Start After Malware or Ransomware:

                                            @DustinB3403 said in Windows 10 Defender Won't Start After Malware or Ransomware:

                                            Also I highly recommend Cybereason RansomFree

                                            Product is no longer developed or supported.

                                            My installs keep getting updates... Got any confirmation of this?

                                            https://www.cybereason.com/hubfs/ransomfree-EOL-message.pdf

                                            1 Reply Last reply Reply Quote 1
                                            • 1
                                            • 2
                                            • 1 / 2
                                            • First post
                                              Last post