How to Use Microsoft Safety Scanner in Windows  

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    How to Use Microsoft Safety Scanner in Windows

    How to Use Microsoft Safety Scanner in Windows

    Published by Category: Security System
    09 Jun 2021
    Designer Media Ltd



    How to Use Microsoft Safety Scanner in Windows


    Microsoft Safety Scanner is a free scan tool designed to find and remove malware from Windows computers. Simply download it and run a scan to find malware and try to reverse changes made by identified threats.

    Microsoft Safety Scanner only scans when manually triggered and is available for use 10 days after being downloaded, then expires afterwards. It is recommend that you always download the latest version of this tool before each scan.

    Microsoft Safety scanner is a portable executable and does not install itself on your computer. To remove this tool, you would just delete the downloaded msert.exe executable file.


    See also:

    This tutorial will show you how to scan your computer on-demand for malware with the portable Microsoft Safety Scanner tool in Windows 7, Windows 8, and Windows 10.

    This tool does not replace your antimalware product. For real-time protection with automatic updates, use Windows Defender Antivirus on Windows 10 and Windows 8 or Microsoft Security Essentials on Windows 7. These antimalware products also provide powerful malware removal capabilities.






    Here's How:

    1 Download the 32-bit or 64-bit version of Microsoft Safety Scanner for your same 32-bit or 64-bit Windows.
    2 Save the msert.exe to where you want, and run it.

    3 If prompted by UAC, click/tap on Yes. (see screenshot below)

    How to Use Microsoft Safety Scanner in Windows-microsoft_safety_scanner-1.jpg

    4 Check the Accept all terms of the preceding license agreement box, and click/tap on Next. (see screenshot below)

    How to Use Microsoft Safety Scanner in Windows-microsoft_safety_scanner-2.png

    5 Click/tap on Next. (see screenshot below)

    How to Use Microsoft Safety Scanner in Windows-microsoft_safety_scanner-3.png

    6 Select (dot) the type of scan (ex: Quick, Full, or Customized) you want performed, and click/tap on Next. (see screenshots below)

    If you select Customized scan, you will need to click/tap on the Choose Folder button, select the drive or folder you want to scan, click/tap on OK, and then click/tap on Next.


    How to Use Microsoft Safety Scanner in Windows-microsoft_safety_scanner-4.png How to Use Microsoft Safety Scanner in Windows-microsoft_safety_scanner-5.png How to Use Microsoft Safety Scanner in Windows-microsoft_safety_scanner-6.png

    7 Microsoft Safety Scanner will now start scanning what you selected. (see screenshot below)

    If the tool finds any infections, it will identify the malware that it has found and then remove that malware from your computer, or give you options for what to do.


    How to Use Microsoft Safety Scanner in Windows-microsoft_safety_scanner-7.png

    8 If the scan completes without any issues found, click/tap on Finish. (see screenshot below)

    How to Use Microsoft Safety Scanner in Windows-microsoft_safety_scanner-8.png

    9 If you like, the Microsoft Safety Scanner scan log results are located at: C:\Windows\Debug\msert.log

    Example msert.log file:

    Code:
    ---------------------------------------------------------------------------------------
    
    Microsoft Safety Scanner v1.0, (build 1.301.1043.0)
    Started On Wed Sep 11 12:05:16 2019
    Microsoft Safety Scanner Finished On Wed Sep 11 12:08:24 2019
    
    
    Return code: 0 (0x0)
    
    ---------------------------------------------------------------------------------------
    
    Microsoft Safety Scanner v1.0, (build 1.301.1043.0)
    Started On Wed Sep 11 12:28:11 2019
    
    Extended Scan Results : C:\Users\Brink\Downloads
    ----------------
    ->Scan ERROR: resource process://pid:88,ProcessStart:132125973405458028 (code 0x00000005 (5))
    ->Scan ERROR: resource process://pid:156,ProcessStart:132125973405982416 (code 0x00000005 (5))
    ->Scan ERROR: resource process://pid:532,ProcessStart:132125973443691751 (code 0x00000005 (5))
    ->Scan ERROR: resource process://pid:748,ProcessStart:132125973465060956 (code 0x00000005 (5))
    ->Scan ERROR: resource process://pid:848,ProcessStart:132125973473932815 (code 0x00000005 (5))
    ->Scan ERROR: resource process://pid:920,ProcessStart:132125973474499170 (code 0x00000005 (5))
    ->Scan ERROR: resource process://pid:964,ProcessStart:132125973474771623 (code 0x000003E6 (998))
    ->Scan ERROR: resource process://pid:2804,ProcessStart:132125973483897455 (code 0x00000005 (5))
    ->Scan ERROR: resource process://pid:3996,ProcessStart:132125973495702029 (code 0x00000005 (5))
    ->Scan ERROR: resource process://pid:5180,ProcessStart:132125973501520677 (code 0x00000005 (5))
    ->Scan ERROR: resource process://pid:5212,ProcessStart:132125973501538927 (code 0x00000005 (5))
    ->Scan ERROR: resource process://pid:7044,ProcessStart:132125973517568219 (code 0x00000005 (5))
    ->Scan ERROR: resource process://pid:9984,ProcessStart:132125973665790979 (code 0x00000005 (5))
    ->Scan ERROR: resource process://pid:12056,ProcessStart:132125974721828675 (code 0x00000005 (5))
    ->Scan ERROR: resource process://pid:12412,ProcessStart:132125974726736980 (code 0x00000005 (5))
    ->Scan ERROR: resource process://pid:3992,ProcessStart:132126299574744823 (code 0x00000005 (5))
    ->Scan ERROR: resource process://pid:8564,ProcessStart:132126859531635168 (code 0x00000005 (5))
    ->Scan ERROR: resource process://pid:15168,ProcessStart:132126963636572956 (code 0x00000005 (5))
    ->Scan ERROR: resource process://pid:15168,ProcessStart:132126963636572956 (code 0x00000005 (5))
    ->Scan ERROR: resource process://pid:3996,ProcessStart:132125973495702029 (code 0x00000005 (5))
    ->Scan ERROR: resource process://pid:5212,ProcessStart:132125973501538927 (code 0x00000005 (5))
    ->Scan ERROR: resource process://pid:9984,ProcessStart:132125973665790979 (code 0x00000005 (5))
    ->Scan ERROR: resource process://pid:12056,ProcessStart:132125974721828675 (code 0x00000005 (5))
    ->Scan ERROR: resource process://pid:8564,ProcessStart:132126859531635168 (code 0x00000005 (5))
    ->Scan ERROR: resource process://pid:7044,ProcessStart:132125973517568219 (code 0x00000005 (5))
    ->Scan ERROR: resource process://pid:5180,ProcessStart:132125973501520677 (code 0x00000005 (5))
    ->Scan ERROR: resource process://pid:12412,ProcessStart:132125974726736980 (code 0x00000005 (5))
    ->Scan ERROR: resource file://C:\hiberfil.sys (code 0x00000020 (32))
    ->Scan ERROR: resource file://C:\hiberfil.sys (code 0x00000020 (32))
    ->Scan ERROR: resource file://C:\pagefile.sys (code 0x00000020 (32))
    ->Scan ERROR: resource file://C:\pagefile.sys (code 0x00000020 (32))
    ->Scan ERROR: resource file://C:\swapfile.sys (code 0x00000020 (32))
    ->Scan ERROR: resource file://C:\swapfile.sys (code 0x00000020 (32))
    ->Scan ERROR: resource process://pid:5180,ProcessStart:132125973501520677 (code 0x00000005 (5))
    ->Scan ERROR: resource process://pid:5180,ProcessStart:132125973501520677 (code 0x00000005 (5))
    No infection found as part of the extended scan
    
    Results Summary:
    ----------------
    No infection found.
    Microsoft Safety Scanner Finished On Wed Sep 11 12:37:44 2019
    
    
    Return code: 0 (0x0)

    That's it,
    Shawn





  1. Posts : 16,167
    Win 10 Pro 64-bit v1909 - Build 18363 Custom ISO Install
       #1

    Hello @Brink ,

    When I initially read this, I read it as it was NOT available until 10 days after the download. May I suggest that the following . . .

    Microsoft Safety Scanner only scans when manually triggered and is available for use 10 days after being downloaded. It is recommend that you always download the latest version of this tool before each scan.

    . . . be changed to something similar to this . . .

    The Microsoft Safety Scanner can be manually run directly after the download, and is only valid for 10 days, and then expires. It is recommend that you always download the latest version [ which includes the latest anti-malware definitions ] of this tool before each scan.
      My Computer


  2. Posts : 7,484
    Windows 10 Home 20H2
       #2

    Speaking as a poorly educated Chinese person, I think the following sentences are easiest for a non-native English speaker to understand:

    Microsoft Safety Scanner should be run manually within 10 days of the download. It will expire afterward.
      My Computer


  3. Posts : 61,922
    64-bit Windows 11 Pro for Workstations
    Thread Starter
       #3

    Hello, and thank you.

    It was a direct quote from the Microsoft Docs page, but I've updated the sentence to help make it more clear.
      My Computers


  4. Posts : 231
    Pro 20H2
       #4

    Brink said:
    It was a direct quote from the Microsoft....
    Bad writing is typical of MS.

    In what way(s) do(es) this scanning differ from that of Defender?
      My Computer


  5. Posts : 61,922
    64-bit Windows 11 Pro for Workstations
    Thread Starter
       #5

    thename said:
    Bad writing is typical of MS.

    In what way(s) do(es) this scanning differ from that of Defender?
    Hello,

    Windows Defender is your broad AV program that monitors and scans your system.

    Microsoft Safety Scanner is a tool designed to scan for and specific remove malware or viruses in its definitions.
      My Computers


  6. Posts : 231
    Pro 20H2
       #6

    Defender too uses definitions. Is it that MRT has some, Safety Scanner has more, Defender has the most?
      My Computer


  7. Posts : 61,922
    64-bit Windows 11 Pro for Workstations
    Thread Starter
       #7

    thename said:
    Defender too uses definitions. Is it that MRT has some, Safety Scanner has more, Defender has the most?
    Windows Defender is your main line of defense.

    MST and Safety Scanner are just extra tools that can be used to help remove malware or virus.
      My Computers


  8. Posts : 231
    Pro 20H2
       #8

    I am asking pointedly about the scanning. User downloads Safety Scanner, performs its scan. Alternatively perfoms Defender's scan (definitions up to date). Difference?
    Last edited by thename; 01 Jan 2022 at 11:51.
      My Computer


  9. Posts : 61,922
    64-bit Windows 11 Pro for Workstations
    Thread Starter
       #9

    thename said:
    I am asking pointedly about the scanning. User downloads Security Scanner, performs its scan. Alternatively perfoms Defender's scan (definitions up to date). Difference?
    I don't know the specific differences.

    While Windows Defender definitions would be more up to date, the tools are designed to look for and remove specific malware if found.
      My Computers


 

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