Windows 10: KB890830 Windows Malicious Software Removal Tool 5.48 - May 2017

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  1. Posts : 28,608
    64-bit Windows 10 Pro build 17650
       22 May 2017 #1

    KB890830 Windows Malicious Software Removal Tool 5.48 - May 2017


    Windows Malicious Software Removal Tool 5.48 update available for Windows 7, Windows 8.1, and Windows 10 via Windows Update.

    You can also manually download at Microsoft Update Catalog.

    See also: Malicious Software Removal Tool in Windows Windows 10 Security System Tutorials

    Update 5/22/2017: Today, we released an update to the Microsoft Malicious Software Removal Tool (MSRT) to detect and remove WannaCrypt malware. For customers that run Windows Update, the tool will detect and remove WannaCrypt and other prevalent malware infections. Customers can also manually download and run the tool by following the guidance here. The MSRT tool runs on all supported Windows machines where automatic updates are enabled, including those that arenít running other Microsoft security products.


    Source: Customer Guidance for WannaCrypt attacks MSRC

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    Last edited by Brink; 24 May 2017 at 07:01.
      My ComputersSystem Spec


  2. Posts : 4,501
    Win10 Home and Pro, Win10 Insider Preview, Win7 Home, Linux Mint
       22 May 2017 #1

    Restart was not required.
      My ComputerSystem Spec


  3. Posts : 152
    Microsoft Windows 10 x64
       23 May 2017 #2

    Bonjour, I am a bit confused

    Is this tool in addition to Windows Defender ?
    Should we run it manually or is it launched periodically in the background
      My ComputerSystem Spec

  4.    23 May 2017 #3

    Interestingly I got it successfully installed on 10th May, then again this morning (23rd) - same KB. Both through WU.
      My ComputerSystem Spec


  5. Posts : 13,319
    Windows 10 Pro
       23 May 2017 #4

    D4ni3l said: View Post
    Bonjour, I am a bit confused

    Is this tool in addition to Windows Defender ?
    Should we run it manually or is it launched periodically in the background
    Hi D4ni3l,

    It is not a tool like protection software, it scans and removes malware but nothing more.

    These are the different key ways from which the tool differs in comparison with protection software
    From Malicious Software Removal Tool in Windows Windows 10 Security System Tutorials
    • The tool removes malicious software from an already-infected computer. Antivirus products block malicious software from running on a computer. It is significantly more desirable to block malicious software from running on a computer than to remove it after infection.
    • The tool removes only specific prevalent malicious software. Specific prevalent malicious software is a small subset of all the malicious software that exists today.
    • The tool focuses on the detection and removal of active malicious software. Active malicious software is malicious software that is currently running on the computer. The tool cannot remove malicious software that is not running. However, an antivirus product can perform this task.
      My ComputersSystem Spec


  6. Posts : 32,491
    Triple boot - Win 10 Pro, Win 10 Pro Insider (2) - (and a sprinkling of VMs)
       23 May 2017 #5

    D4ni3l said: View Post
    Bonjour, I am a bit confused

    Is this tool in addition to Windows Defender ?
    Should we run it manually or is it launched periodically in the background
    Mikedyce said: View Post
    Interestingly I got it successfully installed on 10th May, then again this morning (23rd) - same KB. Both through WU.
    Reference back to this post for a little more info.

    Malicious Software Removal Tool Solved - Windows 10 Forums

    TC
      My ComputersSystem Spec

  7.    23 May 2017 #6

    I just got this but it was not downloaded by windows update but in the background by Windows Update Delivery Optimization! I think this feature is disabled and I'm pretty sure it was Delivery Optimization cause I noticed my crappy internet was too slow even for it's standards

    I could see in task manager Delivery Optimization eating all my internet and downloading something but refreshing windows update like a madman would give me nothing to download. I run here and see this update but by now Delivery Optimization is not using anything related to internet so I checked for recently installed updates on the updates history and KB890830 is there with today date!

    Any idea why this stealth installation? Should I worry about it?
      My ComputerSystem Spec


  8. Posts : 485
    Windows 10 Home Version 1709 Build 16299.371
       23 May 2017 #7

    should we be getting a patch tuesday style update today?
      My ComputerSystem Spec


  • Posts : 32,491
    Triple boot - Win 10 Pro, Win 10 Pro Insider (2) - (and a sprinkling of VMs)
       23 May 2017 #8

    tomseys said: View Post
    should we be getting a patch tuesday style update today?
    Not that anybody is aware of, yet. But, MS is predictably unpredictable.
      My ComputersSystem Spec


  • Posts : 4,501
    Win10 Home and Pro, Win10 Insider Preview, Win7 Home, Linux Mint
       23 May 2017 #9

    Along with a Window Defenders update there is also KB3150513 coming down on my RTM v1607 version.

    KB3150513 Update for Windows 10 Version 1607 - May 23, 2017 - Windows 10 Forums
      My ComputerSystem Spec


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