Adware is a software program that makes banners appear the whole time it is running. In addition, the adware program can install components that transmit information about the user and his behavior and work on his PC. Unlike spyware programs, the user is prompted when the program is being installed. Actually, an adware application is the application, together with its basic functionality, has another one who makes show commercials once in a while, downloaded periodically from certain internet servers.

Spyware is a program, usually downloaded from the Internet, which sends information about the user's knowledge, each time it connects to the Internet. Usually, the packages sent contain marketing information and not confidential information, although some programs can do it too.

Even if some applications are both adware and spyware, it is not a generally true situation. Most of the times spyware applications have installed themselves and they work without the user knowing it, opposing the adware applications that can be installed without user consent.

For a time quality and free software has been installed and used for free but once the complexity of the programs have become more costs have increased to the point that developers had to find methods to diminish. One of the easiest ways was delivering along with their application programs such as adware and spyware. On the other hand, many commercial programs became usable freely and legally by passing the line to the adware category.

The intention of showing harmless commercials and till elements of analyzing and storing information about user and his software or hardware configuration the developers had to install extra modules target computer. If at first it was only an engine that downloaded commercials and showed them in pre-calculated windows, the advertising industry has evolved and grown a little much since then. Now they use different instruments, change your browser and its settings and to launch applications background that monitor your PC activity.

Among the effects that follow installing spyware and adware are the following:

- Adding links to various magazines

- Added new advertisements on web pages, sometimes replacing the existing ones

- The Monitoring browser behavior in commercial purposes.

- Gaining access to passwords and credit cards.

- The slowdown in the computer.

- In some cases, they can call the numbers with high costs.

- Changing the browser home page for commercial purposes.

- Strange icons and new software might appear on the desktop.

You can enter their online sites and try services for free, then decide what to use.