Spyware is a type of malware that is created and spread to collect data from users' computer and then these data are used for unethical and even criminal activities.
As the spywares are different from the computer viruses they are not detected by the anti virus softwares.
Moreover there are spywares that permanently or temporarily deactivates the functioning of the anti virus programs that again makes your PC more vulnerable to spywares and other malwares.
Therefore, without anti spyware software or spyware detector software, it is impossible to trace the spywares and remove spywares from computers.
Spywares are spread over the internet through freeware and shareware programs that are offered by too many websites these days.
Not that every freeware is infected with a spyware, but they are the most used medium for spyware distribution.
When you download a file with spyware or install it to your PC the spyware get installed to the system as well.
When you will have a spyware detector installed in your computer, it will scan the files whenever you will try to install new software.
The anti spyware software will either remove the trace of the spyware from the program or block the program from being installed.
Spywares are capable of causing much damage to your PC as well as to your privacy and online security.
The most common task performed by the spywares is to collect data about your internet usage and browsing habits and then sending them to people who use these to show targeted online advertisements.
Spywares are also used to collect email addresses that are used to send unsolicited emails or spam.
Spywares also use the resources of your computer including the memory and internet bandwidth to store and send the information it collects form your computer.
The most deadly action performed by spyware is that it can steal bank account numbers, credit card numbers and passwords of these accounts and these confidential data are used for criminal activities by the hackers.
With an anti spyware software you can protect yourself from these malicious practices.
There are so many spyware removal tools that are available for free downloads from number of websites.
You can download and install the anti spyware software for free and ensure optimum protection against the deadly spywares.
These anti softwares scan and remove the spywares from you computer and provide online protection from threats of spywares.