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  1.    22 May 2017 #1
    Join Date : Oct 2013
    Posts : 25,183
    64-bit Windows 10 Pro build 17040

    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

    Click image for larger version. 

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    Last edited by Brink; 24 May 2017 at 07:01.
      My ComputersSystem Spec
  2.    22 May 2017 #2
    Join Date : Aug 2014
    Forever West
    Posts : 3,921
    Win10 Home and Pro, Win10 Insider Preview, Win7 Home, Linux Mint

    Restart was not required.
      My ComputerSystem Spec
  3.    23 May 2017 #3
    Join Date : Oct 2016
    Posts : 134
    Microsoft Windows 10 x64

    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 #4
    Join Date : Jun 2016
    Posts : 25
    Windows 10

    Interestingly I got it successfully installed on 10th May, then again this morning (23rd) - same KB. Both through WU.
      My ComputerSystem Spec
  5.    23 May 2017 #5
    Join Date : Jun 2015
    Posts : 12,854
    Windows 10 Pro

    Quote Originally Posted by D4ni3l 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.    23 May 2017 #6
    Join Date : Oct 2014
    Arnold, MD
    Posts : 28,953
    Triple boot - Win 10 Pro, Win 10 Pro Insider (2) - (and a sprinkling of VMs)

    Quote Originally Posted by D4ni3l 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
    Quote Originally Posted by Mikedyce 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 #7
    Join Date : Apr 2016
    Posts : 81
    Windows 10

    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.    23 May 2017 #8
    Join Date : Nov 2015
    Posts : 349
    Windows 10 Home Version 1709 Build 16299.19

    should we be getting a patch tuesday style update today?
      My ComputerSystem Spec
  9.    23 May 2017 #9
    Join Date : Oct 2014
    Arnold, MD
    Posts : 28,953
    Triple boot - Win 10 Pro, Win 10 Pro Insider (2) - (and a sprinkling of VMs)

    Quote Originally Posted by tomseys 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
  10.    23 May 2017 #10
    Join Date : Aug 2014
    Forever West
    Posts : 3,921
    Win10 Home and Pro, Win10 Insider Preview, Win7 Home, Linux Mint

    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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