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What are the symptoms of a computer infected by viruses?

List the symptoms of a computer infected by viruses.

Answers

Maurice
- Disk access lights turning on for non-referenced devices.
- Computer hags anytime when running a program.
- Less memory available than usual, e.g., Base memory may read less than 640KB.
- Size of executable files changing for no obvious reason.
- Change in file names.
- Boot failure.
- Files & programs disappearing mysteriously.
- Unfamiliar graphics or messages appearing on the screen, e.g., the virus might flash a harmless message such as “Merry Christmas” on the computer terminal.
- Slow booting.
- Gradual filing of the free space on the hard disk.
- Corruption of files and programs.
- Programs taking longer than usual to load.
- Disk access time seeming too long for simple tasks.
- Unusual error messages occurring more frequently.
- Frequent read/write errors.
maurice.mutuku answered the question on April 14, 2018 at 14:14

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