If you want to have your computer system ruined then there are many ways like leaving it unprotected. A computer virus can harm your computer significantly without making you aware of this damage. The primary reason for your computer getting the virus in your computer is by leaving your computer without any protection. There are a number of computer viruses capable for damaging your computer such as spyware, scumware, adware, worms, torjan horses and computer viruses. Every virus attacks in quite similar way.

Worms: these are kinds of viruses, which are capable for duplicating themselves and spread throughout the network. It is capable for damaging the systems using all of the resources leading to the collapse of complete system.

Computer Viruses: this sort of computer infecting software is one that spreads throughout the computer networks. It initiates the infection by attaching and duplication after reaching the computer system. The system freezes as virus uses whole of the memory of the system. Depending upon the severity you may lose your system or may confront a small damage.

Torjan Horses: the torjan virus attaches itself like a computer virus but it lacks the ability for reproducing. Torjan manipulates the system owner so he never knew what is happening. The main goal for the virus is to obtain the personal information in order to use it without your knowledge.

Spyware: this is a sort of spy over your system. this keeps the track for everything the owner of the computer systems does with it. it steals away form you all the secrets of your system including passwords and log in information. This information is then directed towards the creator of the spyware.

Adware: this is another sort of the damaging software that steals away the information.

Scumware: this software has the capacity to changes the way you can view a website. You cannot judge the changes.

All of these viruses are capable for damaging your computer system. The only way for keeping your system safe from this damaging software is to install antivirus software with your system. Antivirus software can be a safeguard for you system but it is not like buying just any software. Make sure you buy a recommended antivirus software.