Microsoft Safety Scanner review
A free portable scanner for manual Windows malware checks and cleanup.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Microsoft Safety Scanner is a free, portable Windows utility for manually finding and removing malware from supported Windows computers. It suits people who want an on-demand cleanup tool without installing a traditional security application. The executable is available in 32-bit and 64-bit versions, and users can choose between quick, full, and customized scans. Results appear on screen and in a detailed log, giving users a record of what the scan found and did.
Its strongest fit is targeted, occasional scanning. A custom scan can focus on a selected folder or drive, while quick and full modes support broader checks. The tool can remove detected malware and attempt to reverse changes made by threats. Because it is portable, it can be downloaded when needed and run without an installation shortcut. However, it is manually triggered, supports Windows only, and does not provide scheduled scans. Microsoft describes it as a supplementary scanner rather than a replacement for real-time antivirus protection.
The main operational limitation is the download lifecycle: each executable automatically expires 10 days after download. For later scans, users need to download the current version again. That approach keeps the utility tied to a recent release but makes it less suitable for a permanently available offline toolkit. Choose Microsoft Safety Scanner for free, portable, on-demand Windows cleanup with flexible scan modes and log output. Choose another option if you need continuous protection, scheduled scanning, broader platform coverage, or a persistent installation.
Microsoft Safety Scanner pros and cons
- Where it wins
- Free portable executable with no installation shortcut
- Quick, full, and custom scans with folder or drive selection
- Removes malware and attempts to reverse threat-related changes
- Where it doesn't
- Windows only
- No scheduled scans or real-time antivirus protection
- Downloads expire automatically after 10 days
Microsoft Safety Scanner fact sheet, pricing and score →
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