The following are the sympotoms that refer to a VIRUS infestation:
• It takes longer than normal to open a file and run a program;
• Due to the limited amount of space available, the speed has been slowed;
• Displaying unwanted messages that are inconsistent with the works when the system runs;
• A software takes longer to install than usual;
• Running files take up more space;
• The computer shuts down during booting or workhours;
• File names are substituted with garbled labels.