Download Microsoft Malicious Software Removal Tool 5.139 (64-bit)

What is the Malicious Software Removal Tool and Do I Need It?

Updated: February 12, 2026

Size: 82.35 MB

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82.35 MB · February 12, 2026

Windows-KB890830-x64-V5.139.exe

Previous versions More »

5.139 (64-bit) February 12, 2026 82.35 MB 5.137 (64-bit) November 13, 2025 79.5 MB 5.136 (64-bit) October 16, 2025 77.11 MB 5.135 (64-bit) August 14, 2025 84.5 MB 5.134 (64-bit) June 12, 2025 80.54 MB 5.133 (64-bit) May 15, 2025 79.37 MB