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1,Compression utility that shrinks the size of a file.
2,Antivirus that protects the computer from crashing due to malicious software.
3,Hard disk scanner utility that searches and removes physical logic errors from a hard disk.
4, Hard disk cleaner utility that searches unwanted files and removes them from your computer.
5, Back up utility that copies or backs up files from one hard disk to another.
6, A screen saver utility that makes the screen to display an image on a blank screen when no action is entered in a keyboard for a period of time.
Joseph lance answered the question on February 15, 2018 at 20:41
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