No single antivirus detects 100% of threats. Security experts often keep SpyHunter Portable 5 on a USB stick as a "second opinion" scanner. If your primary antivirus (e.g., Windows Defender, Norton, or McAfee) identifies a generic threat but fails to remove it, running Portable 5 can target rootkits or polymorphic malware that your main AV missed.
While SpyHunter Portable 5 is powerful, it is not a replacement for traditional antivirus software. spyhunter portable 5
The portable utility allows you to choose from: No single antivirus detects 100% of threats