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USB antivirus: how to install it on my PC?

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zelena_nina Posted messages 28 Status Member -  
bazfile Posted messages 58534 Registration date   Status Moderator Last intervention   -

Hello!

- I bought an OEM W10, and I don’t see Defender in the list of installed programs under 'Programs and Features'; shouldn’t it be there?

- And when I search my disk with the term DEFENDER.EXE, I just get this:

amd64_windows-defender-service_31bf3856ad364e35_10.0.19041.746_none_a39f6d9ab59bd8b7_msmpeng

amd64_windows-defender-service_31bf3856ad364e35_10.0.19041.746_none_a39f6d9ab59bd8b7_mpcmdrun

amd64_windows-defender-nis-service_31bf3856ad364e35_10.0.19041.1_none_d3e3ad84b24cfdfe_nissrv

Can you tell me what these lines correspond to?

So I went to download DEFENDER on the Internet. However, I had to put it on an external drive (USB), but I can’t find any tutorials on what to do with this drive, how to transfer the files to my computer, whether to group them in a folder or not, and maybe open the .exe there; or run the .exe from the drive... in short, I don’t know what to do.

I would also like to have instructions on how to properly configure the DEFENDER antivirus in 'Group Policies', please, thank you very much!

URGENT PLEASE because I don’t have any antivirus on my PC and I’ve already had quite a few problems, including a Trojan, which I eliminated with Malware Bytes, THANK YOU VERY MUCH!

Nina

:)

10 answers

  1.
    brucine Posted messages 25258 Registration date   Status Member Last intervention   4 187
     

    Hello,

    Windows Defender is built into Windows and does not appear in the list of programs or applications.

    It can be disabled by a virus...or by another antivirus.

    If you want it to reappear, you need to uninstall Malware Bytes, it will reactivate itself, it's either cheese or dessert, never two antivirus at the same time.

    None of these products protect against the deliberate behavior of the user against it (questionable sites, attachments...)

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    1. zelena_nina Posted messages 28 Status Member
       

      Thank you! I still have questions please, see below thanks!

      :)

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  2. bazfile Posted messages 58534 Registration date   Status Moderator Last intervention   20 288
     

    Hello.

    Windows Defender is installed by default on Windows 10, so your PC indeed has Windows Defender. It’s normal that it’s not listed among the installed programs since it's integrated into Windows 10. To find it, go to the settings of Windows, then to update and security, and then to Windows security.

    bazfile
    Moderator/Security Contributor.
    A hello, a response, and a thank you are always appreciated.

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    1. zelena_nina Posted messages 28 Status Member
       

      Thank you! I still have questions, please see below. Thank you very much!

      :)

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  3. corrado076 Posted messages 445 Registration date   Status Member Last intervention   26
     

    Hello

    being integrated into W10, you have it by default.

    but not in "Programs and Features"

    it's in "Update and Security" under the "Windows Security" tab.

    you should also have a small upward arrow for hidden icons in the taskbar at the bottom right, and by clicking on it, you should see a small shield which is Windows Defender.

    Best regards

    on a computer, if it doesn't fit, we don't force it.
    when we don't know, we cannot guess.

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    1. zelena_nina Posted messages 28 Status Member
       

      Thank you very much, I still have questions please see below :)

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  4. zelena_nina Posted messages 28 Status Member
     

    Hello everyone,

    Thank you!

    Bruccine: thank you! Yes, I have of course uninstalled MalwareByte. I have indeed activated the display of the icon today.

    What made me doubt, especially, is that it did not appear in 'Programs and Features'; bazfile, thank you, just gave me a response on this topic, corrado as well, thank you.

    However, yes, I went to check "Update & Security" in the "Windows Security" tab: but it doesn't appear there either, I looked at some tutorials and yes, it is there in their tutorials, but not on my PC, that's why I have these questions, due to all these somewhat contradictory/intuitive elements. And since it's an OEM and I've never had so many problems since I bought it, I'm wondering: my PC really behaves as if it doesn't have an active antivirus.

    However, I am still interested in the answer to this question:

    "So I went to download DEFENDER from the Internet. However, I had to put it on an external drive (USB), but no matter how hard I search, I can’t find any tutorials on what to do with this key, how to transfer the files to my computer, whether to group them in a folder or not and maybe open the .exe there; or execute the .exe from the key... anyway, I don’t know what to do."

    Thanks again!

    nina

    :)

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    1. corrado076 Posted messages 445 Registration date   Status Member Last intervention   26
       

      bazfile was quicker than me lol

      by the time I wrote my response, it was too late.

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      1. zelena_nina Posted messages 28 Status Member > corrado076 Posted messages 445 Registration date   Status Member Last intervention  
         

        Thank you :))

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      2. zelena_nina Posted messages 28 Status Member > corrado076 Posted messages 445 Registration date   Status Member Last intervention  
         

        Hello, bazfile isn't answering my question that I've asked several times, I don't get why. Could you answer it please: how to install W DEFENDER on a desktop PC from a USB drive? It's to understand how to do it, even though I don't need it on my desktop. Thank you in advance!

        nina

        :)

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  6. bazfile Posted messages 58534 Registration date   Status Moderator Last intervention   20 288
     

    However, yes, I went to check in "Update & Security" in the "Windows Security" tab: but it doesn’t appear there either,

    It's labeled Windows Security not Windows Defender, this is what you should see:

    bazfile
    Moderator/Contributor security.
    A hello, a response, a thank you are always appreciated.

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    1. zelena_nina Posted messages 28 Status Member
       

      Hello yes, I have all that. What surprises me is that, apart from the logo in the bottom right of the toolbar, I have no other indication anywhere, I’ve searched everywhere, with DEFENDER explicitly mentioned, like when you go to 'virus and threat protection' and there you have control to enable or disable defender. Like in the tutorials, there is a Windows Defender location, and you can enable or disable it with a single click.

      Furthermore, I’ve always been able to go to the root .exe, where there was a DEFENDER file, and there when I search for DEFENDER, I trace back to the Windows folder, but in a subfolder WinSxS, I’ve never seen that, and the most is that this folder contains no files with DEFENDER in the name, only a bunch of files like this:

      unamd64_3ware.inf.resources_31bf3856ad364e35_10.0.19041.1_fr-fr_9df6955d7d2d9783

      And when I type defender.exe, I find the 3 files mentioned in my first message. Anyway, I can't find the defender executable.

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      1. bazfile Posted messages 58534 Registration date   Status Moderator Last intervention   20 288 > zelena_nina Posted messages 28 Status Member
         

        Windows Defender is active on your PC; there apparently are no issues. To verify this and, above all, to reassure yourself, please do the following.

        Download FRST. Once downloaded, save it to the desktop, then right-click on FRST and choose Run as administrator. You will see this:

        Click on Scan

        Warning, wait for the messages indicating that the scan is complete.

        At the end of the scan, you will have two text files on the desktop: FRST and Addition.

        Then send the FRST and ADDITION reports to PJJOINT and then provide the two generated links from PJJOINT in your response.

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      2. zelena_nina Posted messages 28 Status Member > bazfile Posted messages 58534 Registration date   Status Moderator Last intervention  
         

        I just tested PJJOIN to see how it works: I tried, but apparently you need to have an account §

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  7. zelena_nina Posted messages 28 Status Member
     

    Okay, I'll do that, thanks! How do you attach images, please?

    I have another question that has always intrigued me: why all these unnecessary duplicates, I think, on W10? For example, I have 2 folders in programs: one 'Program Files' dated 05/17/20230 and one 'Program Files (x86)' both created on 12/07/2019 at the same time and containing nearly the same folders and programs? Can I delete one or merge them?

    Thanks again!

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    1. bazfile Posted messages 58534 Registration date   Status Moderator Last intervention   20 288
       

      Ok, I will do that, thanks. How do you attach images please?

      https://www.commentcamarche.net/infos/25913-forum-ccm-mode-d-emploi-inserer-une-image-dans-un-message/

      : Why all these unnecessary duplicates, I wonder, on W10? For example, I have 2 folders in programs: one 'Programs' dated 17/05/20230 and one 'Programs (x86)'

      Programs x86 is for 32-bit applications and Programs is for 64-bit applications.

      Can I delete one, or merge them?

      No, definitely not. Avoid messing with Windows or you'll run into problems; each folder has its use and must be kept.

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      1. zelena_nina Posted messages 28 Status Member > bazfile Posted messages 58534 Registration date   Status Moderator Last intervention  
         

        Thank you!

        WHEN I browse to attach the First files, nothing happens, not even an error message, etc. just nothing, as if I hadn't made any attempt to attach a file.

        PS: in the link, they say to 'click on the insert button' for the window to appear: what is this button please?

        EDIT: I mean there is indeed an 'insert' button on the keyboard, but I don't think that's it (I tried anyway but it doesn't work)

        Oops sorry I got it...

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      2. bazfile Posted messages 58534 Registration date   Status Moderator Last intervention   20 288 > zelena_nina Posted messages 28 Status Member
         

        PS: In the link, they say to 'click on the insert button' for the window to appear: what is that button please?

        PJJOINT when I browse to insert the First files, nothing happens, not even an error message, etc.

        Once your file is sent, a page appears with the link; there is one link per file.

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      3. zelena_nina Posted messages 28 Status Member > bazfile Posted messages 58534 Registration date   Status Moderator Last intervention  
         

        Thank you lol sorry, my dyslexia is more overwhelming some days and I miss the obvious... sorry

        Tell me what I need to look for in the FIRST reports since I can't manage to use PJJOINT please thank you, I did exactly like in your screenshot, but I assure you nothing happens details: I click 'choose file', I click on the chosen file, I confirm and... nothing. Maybe it doesn't accept files with certain extensions? Do I need to convert it?

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  8. bazfile Posted messages 58534 Registration date   Status Moderator Last intervention   20 288
     

    For FRST, since you can't do it, just forget it; anyway, since on your PC Windows Security is identical to the image of my message 8, it means everything is OK.

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    1. zelena_nina Posted messages 28 Status Member
       

      Hello bazfile, you just replied to my question about how to install W DEFENDER on a desktop PC from a USB key: I'm not going to do it, it's to know how to do it on ANOTHER PC other than mine... thanks for your response

      :)

      nina

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      1. bazfile Posted messages 58534 Registration date   Status Moderator Last intervention   20 288 > zelena_nina Posted messages 28 Status Member
         

        I already told you that Windows Defender comes pre-installed on Windows, so there’s no reason to install it.

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      2. zelena_nina Posted messages 28 Status Member > bazfile Posted messages 58534 Registration date   Status Moderator Last intervention  
         

        ??????? I want to understand how a USB drive works on which we download an antivirus and then want to install it on a computer: is this a forbidden question?

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      3. bazfile Posted messages 58534 Registration date   Status Moderator Last intervention   20 288 > zelena_nina Posted messages 28 Status Member
         

        It is installed like any other software by opening its executable.

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      4. zelena_nina Posted messages 28 Status Member > bazfile Posted messages 58534 Registration date   Status Moderator Last intervention  
         

        Thank you.

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  9. Claude Lachance Posted messages 33456 Registration date   Status Contributor Last intervention   1 036
     

    Hello

    Open your USB key, open the window to see its contents and double-click on the installer (you will likely need to provide administrator rights). That’s the basics, right? What more do you want to know? It’s not a forbidden question but it doesn’t really make sense. There are antivirus programs independent of the operating system, but Windows Defender is not one of them. It installs like any program on Windows.

    Just make sure that the version you retrieved is clean. Nothing worse than installing an antivirus downloaded from a dubious site.



    But, well, as it has been said, the software is already installed on the operating systems that support it and what you are doing is unnecessary.

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    1. zelena_nina Posted messages 28 Status Member
       

      I don't understand you at all.

      If one day I want to use this method to install antivirus from a USB stick on a computer, and IF that is possible, I would like to know how to do it. No question is stupid, especially this one, and it makes sense. I don't see how it is not worthy of an answer. What does it have to do with MY computer and my original question? Nothing.

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  10. corrado076 Posted messages 445 Registration date   Status Member Last intervention   26
     

    There's no point in getting worked up.

    zelena_nina, Claude Lachance answered your question; you open the window for your key and you launch the executable, the .exe.

    As bazfile said, it's like any other software.

    But you are right to be interested; look at my signature, I work on a simple principle that when we don't know, we can't guess or make up.

    And you're also right when you say that no question is dumb.

    And even though using a USB key is not a bad idea, you have a simpler solution that consists of downloading directly onto the PC where you want to install.

    All solutions are good as long as the result is there. 2x3=6 but 3x2=6 as well.

    Afterward, the various participants don't understand why you want to install Windows Defender when it's already installed in any Windows.

    If you had asked about Avast, AVG, McAfee, or any other third-party software, the question would have made more sense.

    But that's just my opinion.

    Sincerely yours

    On a computer, if it doesn’t fit, you don’t force it.
    When you don’t know, you can’t guess.

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  11. bazfile Posted messages 58534 Registration date   Status Moderator Last intervention   20 288
     

    I don't understand you at all.

    If one day I want to use this method to install antivirus from a USB stick on a computer, and IF that is possible, I would like to know how to do it.

    Everything has already been explained and re-explained, an antivirus is a software like any other, its installation is the same as any other software, this question of software installation doesn't really belong in the virus/security forum. If the answers given don't suit you, ask your question about software installation in the Windows forum, everything has been said and repeated, all answers have been given, I consider this post resolved.

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