How to Run a Microsoft Defender Offline Scan in Windows 10  

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  1. Posts : 56,823
    Multi-boot Windows 10/11 - RTM, RP, Beta, and Insider
       #30

    @Cliff S

    Just FYI. Apparently this is still available. Doesn't answer your issue, I know, but might prove/disprove if it will run at all!

    https://support.microsoft.com/en-us/...-protect-my-pc
      My Computers


  2. Posts : 27,180
    Win11 Pro, Win10 Pro N, Win10 Home, Windows 8.1 Pro, Ubuntu
       #31

    f14tomcat said:
    @Cliff S

    Just FYI. Apparently this is still available. Doesn't answer your issue, I know, but might prove/disprove if it will run at all!

    https://support.microsoft.com/en-us/...-protect-my-pc
    Thanks I just wanted to try it in a "real world" situation I was in yesterday. My main way of recouping my system from an attack is Macrium, with an external disk image that stays disconnected, until I've run complete Defender, AdwCleaner, MBAM, and MRT scans, on all four internal disks, and then I'm ready to create an image.
      My Computers


  3. Posts : 41,452
    windows 10 professional version 1607 build 14393.969 64 bit
       #32

    Caution / Warning: Windows Defender Offline (WDO) blue screen boot loop

    For those using Windows 10 version 1607.
    Windows Defender Offline was first integrated into Windows 10 beginning with the Anniversary version 1607.

    A WDO blue screen boot loop can be an unexpected outcome if you use Windows Driver Verifier.

    How to reproduce the WDO blue screen boot loop with windows 10 version 1607:

    1) start with a clean install of windows 10 version 1607 using windows 10 iso: Download Windows 10
    2) type verifier in search
    3) move dot from create standard settings to create custom settings (for code developers)
    4) for select individual settings from this full list check all boxes except Randomized low resources simulation and DDI compliance checking, and DDI compliance checking (additional)
    5) click next
    6)move dot from automatically select unsigned drivers to select drive names from a list
    7) click next
    8) click on column heading Provider so that it sorts the providers
    9) check all non-Microsoft drivers (on a recent clean install for my notebook there were approximately 17)
    10) click finish

    run driver verifier until it produces a blue screen
    typically one occurs immediately with stop code driver verifier detected violation

    11) power off and power on to go to windows troubleshooting menu
    12) choose start up options
    13) select choice number 6: safe mode with command prompt
    14) type verifier /reset
    15) reboot and return to the desktop
    16) open windows defender and click on setting in the right upper corner
    17) in the pop up scroll towards the bottom and click on scan offline
    18) reboot
    19) observe the WDO load
    20) observe the WDO quick scan
    21) reboot to desktop
    22) so far you have ran one windows driver verifier and produce a blue screen and have run WDO and returned to the desktop. Now you must prepare for the WDO blue screen boot loop. Any and all important files should be backed up. Any diagnostic or research work should be done at this time as the next step will lead to the WDO blue screen boot loop.
    23) run Windows driver verifier a second time
    24) now you are in a WDO blue screen boot loop
    25) if you try to exit this blue screen boot loop all boots lead to another WDO load and then WDO quick scan.
    26) it was not possible to get to safe mode with command prompt to turn off windows driver verifier
    27) using a windows 10 bootable iso for windows troubleshooting unfortunately is missing the startup options menu so you cannot get to safe mode with command prompt.
    28) a reset with save files may indicate the drive where windows is located is locked. Please unlock the drive and try again.
    29) a reset with remove all files may indicate that there is a missing partition.
    30) window 10 version 1607 will soon become an old version. The windows 10 Creators Update is rolling out this month (April 2017). At this point it is unknown whether this incompatibility problem will persist or whether it has been corrected.
    If anyone already has a copy of the new version if you can please check to see whether there is still an incompatibility problem with the two windows software products.
      My Computer


  4. Posts : 1,333
    10 Pro retail 1909
       #33

    I am sorry if my post is not relevant.
    I used Macrium for over a decade with no issues.
    I had a problem with WDO when I first tried it. I recovered with Macrium and since then it runs every time. This is likely not applicable to your post which is too complicated for me but I saw the 2 red flag words and wanted to comment on them.
      My Computer


  5. Posts : 41,452
    windows 10 professional version 1607 build 14393.969 64 bit
       #34

    Windows 10 Version 1703 upgrade has fixed a problem with version 1607


    Yesterday 4/5/2017 I upgrade one of my computers from windows 10 professional version 1607 to Windows 10 version 1703 (OS Build 15063.13).

    The WDO blue screen boot loop was tested using windows driver verifier.

    The WDO blue screen boot loop will soon become history as the new version 1703 did not produce a WDO blue screen boot loop.
      My Computer


  6. Posts : 27,180
    Win11 Pro, Win10 Pro N, Win10 Home, Windows 8.1 Pro, Ubuntu
       #35

    Hi Shawn!

    I just finally found out what my problem was on the my desktop, why I couldn't run an offline scan.
    While in the Feedback hub, up voting and commenting(me too!) I came across this one: Feedback Hub - Windows Insider
    And the response from Microsoft was TOTALLY helpful when one understands it(and is pretty advanced, and has a black belt in searching):
    Thank you for providing this feedback. The reason Windows Defender Offline is not working in this case is due to the WinRE (Windows Recovery Windows Recovery Environment (Windows RE) | Microsoft Docs) environment getting corrupted (to run the offline scan the Operating system boots into WinRE). To get WDO to work again you must recover the WinRE environment for your specific Operating system version.
    We need your help to understand more about how WinRE got corrupted and we would greatly appreciate getting new logs. (from users in Windows Insiders Program, builds 16262 or higher)
    Here are the steps: (Creators' Update version and greater)
    - locate this feedback item in Feedback Hub (go to My Feedback)
    - select "Add Feedback Details" in Feedback Hub and follow "Recreate the problem" instructions
    - select type of problem "Windows Defender Antivirus (Default)")
    - press "Start Capture",
    - repro the problem (exact repro steps would be extremely helpful)
    - press "End Capture" and
    - upload the logs.
    Thank you!
    Well I did a search to find out how to find, repair or replace WinRE, and fond this: TeraByte Unlimited Knowledge Base

    First following the instructions, I found out I had no WinRE file in C:\Windows\System32\Recovery.

    So I needed to find, or in my case create one.
    I tried the tut at that site, but couldn't get it to work(tutorial wasn't that good), but I remembered that @Kari either just made one or updated it: Convert ESD file to WIM using DISM in Windows 10 Tutorials

    He, like you writes excellent step x step for dummies tutorials,
    and I was able to change my Install ESD to WIM,
    then open it in 7Zip,
    How to Run a Microsoft Defender Offline Scan in Windows 10-image.png
    and pull out the Winre from the Install.wim by going to D:\ISO_Files\sources\install.wim\Windows\System32\Recovery\

    and copying it to my downloads folder(desktop is ok too) as you cannot copy to C:\Windows\System32\Recovery inside of 7Zip ( a permissions for the root folder),

    then I copied it to the recovery folder.
    How to Run a Microsoft Defender Offline Scan in Windows 10-image.png

    I then needed to run reagentc /enable
    to activate it.


    After that, when I was able to run the offline scanHow to Run a Microsoft Defender Offline Scan in Windows 10-mexicanwave.gif

    I hope you or Kari can make a tutorial on this, as I am sure it has other reasons to be done.
    I just wonder why mine was missing.
    Also after the offline scan, while looking for it again(the WinRE) it was gone from the recovery folder again
    So I am keeping my copy tucked away for now, should I need it again
      My Computers


  7. Posts : 26,438
    Windows 11 Pro 22631.3447
       #36

    Thanks Cliff, I was able to run one but not sure if it completed. My PC restarted and it started to scan but it did not take 15 minutes.
      My Computer


  8. Posts : 27,180
    Win11 Pro, Win10 Pro N, Win10 Home, Windows 8.1 Pro, Ubuntu
       #37

    Josey Wales said:
    Thanks Cliff, I was able to run one but not sure if it completed. My PC restarted and it started to scan but it did not take 15 minutes.
    Offline doesn't take that long specially when you have SSDs and on a system with your specs:)
      My Computers


  9. Posts : 26,438
    Windows 11 Pro 22631.3447
       #38

    Cliff S said:
    Offline doesn't take that long specially when you have SSDs and on a system with your specs:)
    I was thinking that but was not sure..Thanks again
      My Computer


  10. Posts : 27,180
    Win11 Pro, Win10 Pro N, Win10 Home, Windows 8.1 Pro, Ubuntu
       #39

    Josey Wales said:
    I was thinking that but was not sure..Thanks again
    You're welcome Josey:)
      My Computers


 

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