BootMGR missing only when trying to run Windows Defender Offline

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  1. Posts : 5
    Windows 7 Ultimate x64
       #1

    BootMGR missing only when trying to run Windows Defender Offline


    Trying to rid a Dell Latitude D630 running Windows 7 Ultimate 64-bit laptop of malware, trojans etc. I loaded Windows Defender Offline 64-bit on a USB stick, changed the boot order to boot from USB, but receive the error message "BOOTMGR MISSING Press Ctrl+Alt+Del to restart", making it unable to run the Windows Defender Offline. I do not get this error when I boot normally (from HDD), only when trying to run WDO from USB. Laptop is fully functional (albeit slow) when booting from HDD. Also, I do not have any of the install/recovery disks.

    Any and all suggestions are welcomed.
      My Computer


  2. Posts : 5,915
    Windows 10 Pro X64
       #2

    ms26260, welcome to the forums. Sound like you need to make the usb bootable.use this

    USB Boot


    select try unlisted linux iso from the drop down, choose the ISO you want to boot, then select your drive letter. Then boot from the usb.

    BootMGR missing only when trying to run Windows Defender Offline-usbinstall.png

    Your ISO to choose is the one created as shown here

    BootMGR missing only when trying to run Windows Defender Offline-msss-media.png
    Last edited by Dude; 30 Apr 2013 at 11:02.
      My Computer


  3. Posts : 5
    Windows 7 Ultimate x64
    Thread Starter
       #3

    Dude - Thanks for the quick response! I am not sure about Step 2. 'Select your *.iso. Is the WDO the .iso?
      My Computer


  4. Posts : 5,915
    Windows 10 Pro X64
       #4

    ms26260 said:
    Dude - Thanks for the quick response! I am not sure about Step 2. 'Select your *.iso. Is the WDO the .iso?
    The file you want is the MSSS_Media.iso It is shown in the second pic.
      My Computer


  5. Posts : 5
    Windows 7 Ultimate x64
    Thread Starter
       #5

    Thanks again. Will try this after work, will post results.
      My Computer


  6. Posts : 4,466
    Windows 10 Education 64 bit
       #6

    How did you create the Defender USB stick? If done correctly, with the downloaded utility, it should be bootable.
      My Computer


  7. Posts : 6,830
    Windows 7 Ultimate 32-Bit & Windows 7 Ultimate 64-Bit
       #7

    ms26260

    I suggest you wait for Cottonball . He will help you remove the viruses . I wouldn't scan the PC with WDO.
      My Computer


  8. Posts : 5
    Windows 7 Ultimate x64
    Thread Starter
       #8

    VistaKing said:
    ms26260

    I suggest you wait for Cottonball . He will help you remove the viruses . I wouldn't scan the PC with WDO.

    Is WDO not reliable/effective ?
      My Computer


  9. Posts : 6,830
    Windows 7 Ultimate 32-Bit & Windows 7 Ultimate 64-Bit
       #9

    I personally don't find it effective. Do you might stating what virus you had or have ? What antivirus software do you have ?
      My Computer


  10. Posts : 5
    Windows 7 Ultimate x64
    Thread Starter
       #10

    I do not know what virus it has, the system bogs down and hangs a lot. This is a hand-me-down laptop just given to us, the previous owner was running an outdated version of ESET. Once we get the system cleaned up we will install antivirus software, any suggestions ?

    Thanks
      My Computer


 
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