: Clean all the dust and dirt around the desk where the computer is placed. Remove dust and dirt from outside the computer. Clean the monitor. In this case antistatic spray or solution or cloth can be used. Clean printers and other peripherals. If there is dust on the table , chair , floor etc., clean it. If you need to print every day, six pieces of paper may be lying here and there. To clean all these pieces. And tidying up used papers. Running Scandisk , defragmentation program at least once a week .