Windows 8 and 8.1 Forums

Windows Defender Error

  1. #21

    Posts : 20
    windows 8.1


    Quote Originally Posted by Borg 386 View Post
    Try running a scan with the following scanners. They are on-demand scanners. If possible, d/l these on a clean machine to minimize the possibility of corruption.

    If you made your copy of WDO on the infected machine, it's a possibility the anti-virus definitions were compromised.

    First, run rkill

    Do NOT reboot after running it. Then run the following scanners.

    Malwarebytes (The free version is good, you can upgrade later if you choose) Do a full system scan. If it finds anything, check the boxes of the items found & quarantine them.

    TDSSKiller. This will scan for rootkits.

    Norton Power Eraser.

    Because Norton Power Eraser uses aggressive methods to detect threats, there is a risk that it can select some legitimate programs for removal. If you accidently remove a legitimate program, you can run Norton Power Eraser to review past repair sessions and undo them.
    Please post the results of these scans
    rkill, Malwarebytes and TDSSKiller all came up clean. When I ran Norton Power Eraser. it immediately rebooted the machine,
    putting it into an infinite loop: "Preparing automatic repair" followed by "diagnosing your PC" and then "PC did not start". None of the choices allow me to boot into anything: no windows but I can get a command prompt. I'm dead in the water at this point. Suggestions would be appreciated.
    Last edited by leeelson; 27 Dec 2013 at 23:59.

      My System SpecsSystem Spec

  2. #22

    I've never seen NPR have that kind of problem on any of the other machines I've used it on. It rebooted because it was doing a Rootkit scan. But you did mention you also had some problems with WDO. At this point you should probably do a Refresh as Brink suggested or a Repair install.

    You can also try running a SFC to see if that will set things in order. You should run SFC at least 3X since it doesn't always fix all problems the 1st or 2nd time around.

    Reset Windows 8

    SFC /SCANNOW Command - Run in Windows 8

    Repair Install Windows 8
    Last edited by Borg 386; 28 Dec 2013 at 14:23.
      My System SpecsSystem Spec

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