KB890830 Windows Malicious Software Removal Tool 5.143 - July 14

Microsoft Support:

Windows Malicious Software Removal Tool (MSRT) 5.143 helps remove malicious software from computers running any of the following operating systems:

Windows 11
Windows Server 2022
Windows 10
Windows Server 2019
Windows Server 2016
Windows 8.1
Windows Server 2012 R2
Windows Server 2012
Windows 7

Microsoft generally releases MSRT monthly as part of Windows Update or as the standalone tool. Use this tool to find and remove specific prevalent threats and reverse the changes they have made (see covered threats). For comprehensive malware detection and removal, consider using Microsoft Safety Scanner.

This article contains information about how the tool differs from an antivirus or antimalware product, how you can download and run the tool, what happens when the tool finds malware, and tool release information. It also includes information for the administrators and advanced users, including information about supported command-line switches.

Notes:

In compliance with the Microsoft Support Lifecycle policy, MSRT is no longer supported on Windows Vista and older platforms. For more information, go to Microsoft Support Lifecycle.
If you are having problems in regards to an MSRT update within Windows Update, see Troubleshooting problems updating Windows 10.
Starting in May 2025, the Windows Malicious Software Removal Tool is no longer supported on Windows Server 2008 and Windows Server 2008 R2.

Remove specific prevalent malware with Windows Malicious Software Removal Tool (KB890830)

Manual download:

How to Use Malicious Software Removal Tool in Windows

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Windows 11Intel® Xeon® X5690 3.47GHz Six-CoreG.Skill PC3-12800 1600MHz 24GBNVIDIA GeForce GTX 1050

OS: Windows 11

Computer type: PC/Desktop

Manufacturer/Model: Asus/Custom Build

CPU: Intel® Xeon® X5690 3.47GHz Six-Core

Motherboard: Asus P6T Deluxe v2

Memory: G.Skill PC3-12800 1600MHz 24GB

Graphics Card(s): NVIDIA GeForce GTX 1050

Sound Card: SoundMAX ADI AD2000B HD Audio

Monitor(s) Displays: Acer T232HL Touch Screen

Screen Resolution: 1920 x 1080 @ 60Hz

Hard Drives: 6 Crucial MX500 SSD 1TB each.

PSU: Thermaltake Toughpower Gold 850W

Case: Thermaltake Armor VA8000SWA

Cooling: Thermaltake Air Cooling System

Keyboard: Illuminated Multimedia LED Keyboard

Mouse: M16 Dual Mode Illuminated Mouse - Bluetooth / 2.4 GHz Mode

Internet Speed: 800 Mbps

Browser: Edge / Opera / Vivaldi / Chrome / Firefox / Brave

Antivirus: Windows Defender Security

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My Computers

System One System Two Other systems

At a glance
Win 11 Pro 25H2 26200.8737Intel® Core™ i7-14700KG.SKILL Ripjaws S5 Series 64GB (2 x 32GB) DDR5ASUS GeForce RTX 4070 Super 12GB

OS
Win 11 Pro 25H2 26200.8737
Computer type
PC/Desktop
Manufacturer/Model
Self Built
CPU
Intel® Core™ i7-14700K
Motherboard
ASUS TUF Z690-PLUS WIFI (BIOS 4505)
Memory
G.SKILL Ripjaws S5 Series 64GB (2 x 32GB) DDR5
Graphics Card(s)
ASUS GeForce RTX 4070 Super 12GB
Sound Card
Sound Blaster AE-5 Plus
Monitor(s) Displays
ASUS TUF Gaming 27" 2K HDR Gaming
Screen Resolution
2560 x 1440
Hard Drives
Samsung 990 Pro 1TB NVMe (Win 11 25H2)
SK hynix P41 500GB NVMe
SK hynix P41 2TB NVMe (x3)
Crucial P3 Plus 4TB
PSU
Corsair RM850x Shift
Case
Antec Dark Phantom DP502 FLUX
Cooling
Corsair Nautilus 360 RS AIO
Keyboard
Logitech MK 320
Mouse
Razer Basilisk V3
Internet Speed
750Mbs
Browser
Firefox
Antivirus
Winows Security
Other Info
MR 8.1 Home
At a glance
Win 11 Pro 25H2 26200.8737Intel Core i5-1140064 GB DDR4MSI GeForce RTX 3060 Ventus 2X 12GB

Operating System
Win 11 Pro 25H2 26200.8737
Computer type
PC/Desktop
Manufacturer/Model
Self Built
CPU
Intel Core i5-11400
Motherboard
Asus TUF Gaming Z590 Plus WiFi (BIOS 2803)
Memory
64 GB DDR4
Graphics card(s)
MSI GeForce RTX 3060 Ventus 2X 12GB
Sound Card
SoundBlaster Audigy Fx V2
Monitor(s) Displays
Samsung F27T350
Screen Resolution
1920x1080
Hard Drives
Samsung 980 Pro 1TB
Samsung 970 EVO Plus 2TB
Samsung 870 EVO 500GB SSD
PSU
Corsair HX750
Case
Cougar MX330-G Window
Cooling
Thermalright Frozen Edge 240 Black AIO
Internet Speed
350Mbps
Browser
Firefox
Antivirus
Windows Security
System Three
Win 11 Pro 25H2 26200.8737
ASUS PRIME Z370-P II BIOS 3004 7/12/21
Intel Core i7-8700 CPU @ 3.20GHz
32GB DDR4 RAM (4x8)
iGPU Intel UHD Graphics 630
Mid-Tower Desktop