Removing Trojan Horse Manually

A Trojan, sometimes referred to as a Trojan horse, is non-self-replicating malware that appears to perform a desirable function for the user but instead facilitates unauthorized access to the user’s computer system.

Is trojan virus Dangerous?

The short answer is yes, and the long answer is sometimes, because there are near a thousand different trojan horse viruses and they all will most likely alter your computer in some way or another.
WORKING OF TROJANS::

In this tutorial i will tell you a method through which you can manually remove a Trojan horse,Sometimes  a trojan horse disables your antivirus and prevent any other Antivirus from being installed.
1-Go to my computer
2-Drive c
3-Program Files
4-Common flies
5-Microsoft shared
6- Ms info or msinfo 32

The virus might hide it self in startup so delete the temporarily internet file.
Is there any way to prevent Trojan attack?
I have wrote an article on securing network from trojans this will explain on How to keep Trojans out of your PC.