There are many different forms of "intrusions" or
"infections' that can plague a modern PC including viruses,
and "Malware." Malware is all forms of malicious software
that includes Spyware and Aware.

If the PC owner does know how to remove Spyware and Adware,
it can cause a lot of damage to the PC's operating system.

You do not deliberately download and install Spyware and
Adware to your computer, instead they are installed when
you visit websites or when you download and install other
software programs, without your knowledge.

What is the differences between Spyware, Adware and Malware?

Adware automatically displays advertisements when the the
software is running =ADvertisement + softWARE.

It will show advertisements designed by the programmer of
software. Most of the time the advertisements can be
removed by purchasing a license to remove the adverts
permanently. Usually the pop ups contains a malicious PC
virus.

Spyware = SPY + softWARE which is a form of spying on a
computer, by monitoring the habits and uses of the user and
is mostly done without the user's knowledge or consent.
Generally it is used to get more targeted advertisements
and can commonly take the form of annoying pop ups that the
PC user cannot seem to get rid of.

Spyware is an advancement (the next generation) of Adware.
It is designed to intercept or take partial control over
the user's computer, without the user's permission or
informed consent.

Malware=MALicious + softWARE or Malicious software is the
term commonly used term that covers all the various types
of bad software including: computer viruses, worms, trojan
horses, most rootkits, spyware, dishonest adware, crimeware
and other malicious and unwanted software.

How To Know That You Have Spyware and Adware On Your PC:

You know that your computer has become infected when:

1. Internet Explorer behaves erratically or stops working;

2. Your computer slows down even when there are not many
programs loaded;

3. You get unusual error messages or fake error messages
occurring regularly, or your PC freezes for no reason;

4. Your computer has odd programs installed that you can't
seem to get rid of when you try and uninstall them;

5. Your firewall tell you that some program is trying to
connect to the internet, and you have no idea what that
program is.

These are just a few of the many symptoms that you may
experience if you have been infected by Spyware and Adware.

How To Remove Spyware and Adware:

Download and install Firefox so that you don't get anymore
Spyware or Adware.

A program that you can download will scan and remove any
Spyware and Adware from your PC.

A single program will not remove all the Spyware and Adware
so you will need to install and use a couple of programs to
make sure that you get rid of all of it.

In Conclusion:

There is no single anti-Spyware and anti-Adware program
that will get rid of every type of Malware infection. To
result in trouble-free computing, you can use many
different solutions. It is important to remember that
prevention is better than a cure.

Always compute safely, always have the latest updates
installed, do not install every "Cool" application you come
across, do not go to websites that could potentially harm
your computer and ensure that you have a good backup
solution in place.

That way should the worse happen you are able to
effectively recover from it, whilst still maintaining your
data.