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ESET Online Scanner vs Microsoft Safety Scanner: catalog facts
ESET Online Scanner	Microsoft Safety Scanner
Free Free to use with no credit card required.	Free Free download from Microsoft.
Windows	Windows
No installation of a full antivirus suite needed Removes malware as well as detecting it	Portable on-demand scanner that needs no installation Attempts to reverse changes made by detected threats
One-time scans only, no real-time protection Windows only	No real-time protection; scans only when you run it Windows only, and requires SHA-2 signing support
Downloadable app	Downloadable app
Closed source	Closed source
License: Proprietary	License not stated
No account needed	No account needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.