laptop slower since MSE found a potential threat (and didn't deal??)

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  1. Posts : 2,528
    Windows 10 Pro x64
       #41

    Downloading.
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  2. Posts : 79
    64 bit, Windows 7 Home Premium SP1
    Thread Starter
       #42

    Thanks so much :)
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  3. Posts : 2,528
    Windows 10 Pro x64
       #43

    5 seconds are lost due to Winlogon waiting for the audio process (StacSV) to start (5 seconds). There's a delay in explorer.exe starting which appears to track back to Windows Defender scanning D:\Preload\Base.wim (almost 100% of the time spent), along with another large delay due to explorer tray/shell calls due to ObjectDock (DesktopDock64 and ShellEx64). Post-explorer init appears to come mostly from App-V and the Office virtualization handler service (Office 365 installed?), as well as an additional very large disk overhead to the same file mentioned previously.

    A couple of questions - is that WIM file mounted and in use? Does this issue reproduce without Office and Object Desktop installed?
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  4. Posts : 79
    64 bit, Windows 7 Home Premium SP1
    Thread Starter
       #44

    Thank you very much for taking time out to look at this for me cluberti. I'll try to answer your questions when I get home from work, but...

    cluberti said:
    A couple of questions - is that WIM file mounted and in use? how will I be able to tell?
    Does this issue reproduce without Office and Object Desktop installed um, I have no idea...??
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  5. Posts : 79
    64 bit, Windows 7 Home Premium SP1
    Thread Starter
       #45

    So that wim file is the threat that MSE found in the first place, and it's still worried about it? I was never able to locate the file, it's in the recovery drive that I can't get a look into (image in my post 17). Would that explain why I now always get the little green popup box saying detected threats are being cleaned (image in my post 24)?

    I've never uninstalled Office. I don't know what Object Desktop is.
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  6. Posts : 79
    64 bit, Windows 7 Home Premium SP1
    Thread Starter
       #46

    If I installed windows ten might I be able to sidestep this problem, or would it more likely make it worse?
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  7. Posts : 2,528
    Windows 10 Pro x64
       #47

    I would guess in the answer to the .WIM file, the recovery image itself is likely infected (or was), and is unable to be cleaned due to the partition / filesystem. I would in this case (as I would recommend in 99.999% of infection cases) that you back up your data to another drive (removable or otherwise), make sure it's clean there, and then rebuild the PC from scratch. With whatever OS you're comfortable with and are licensed to use.

    Then, restore applications, make sure everything is clean with an offline scan, then restore data and offline scan again before committing to use the PC going forward.

    What is Windows Defender Offline? - Windows Help
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  8. Posts : 79
    64 bit, Windows 7 Home Premium SP1
    Thread Starter
       #48

    Thanks cluberti.

    So I'll back up my files to an external drive.

    Then do I do "Return your computer to factory condition"?
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  9. Posts : 79
    64 bit, Windows 7 Home Premium SP1
    Thread Starter
       #49

    Success!

    I backed up my files, did a factory restore then scanned and reloaded my files.

    And she's working like a dream, starting quickly again and running a lot more quietly too.

    Thank you everyone for all your help, I really appreciate it.
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  10. Posts : 17,322
    Win 10 Pro x64
       #50

    You're welcome, although I think Golden, cluberti and Layback Bear did all the helping.

    Glad you got it sorted. :)
    Last edited by derekimo; 03 Jun 2016 at 21:01.
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