Utility applications - disk defragment, firewalls, and anti-viruses.

Utility applications

Operating systems may include utility applications which are small programs designed to improve system performance.

Here are some examples of utility applications:

Disk defragment – These make hard disks run faster. When you delete a file it makes a gap on the hard drive which can be reused when another file is saved. If the new file is too big it fragments to another gap which eventually makes loading files slower. Defragmentation rewrites files and brings them together to make the hard disk run faster.

Software firewalls – These stop unwanted traffic from the internet entering the computer.


Anti-virus software – this tries to prevent malware from entering the computer, it also scans the computer and connected devices making sure no malware has gained access.

Note from author:
I would recommend using Microsoft security essentials, it is free and does the job perfectly.
- Hoop

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