On-Demand Scanner

A type of antivirus program that actively scans your computer system for viruses only when prompted to do so by the computer user, or by scheduling it as a time-specific task. On-demand scanners, while used to scan hard drives can also be used to check removable storage devices before copying from those devices onto your system. Contrast with on-access scanner.

Vangie Beal
Vangie Beal is a freelance business and technology writer covering Internet technologies and online business since the late '90s.

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