This is a false positive. Rufus writes directly to USB sectors – behavior typical of malware but also of legitimate bootable tools. Add an exclusion in Defender or click "More info" → "Run anyway."
Last updated: May 2026 – Version 4.5+ supported. download rufus latest version
You’ll now see a progress bar for writing large ISOs and an estimated completion time. This is a false positive
Before you , make sure you have:
