Hi Sajhabasi,

Trojan Horse virus is giving me trouble since last few days.I've Symantec Endpoint Protection, but that didn't work.And also I install window security solution, that didn't work either. I bought this computer recently, I'm really worried. Please help me how to remove this virus. Thank you.

Try Avira antivir (antivirus). Hopefully that can clean your Trojan problem

Did you try to see what going on with Namrata? I had big problems, not only viruses but people were tracking my computer too. I downloaded superantispyware along with Mcafee. Check with your school web, you may able to download anti-virus software free. Tha's the way I got Mcafee enterpirses.

Stop paying for a OS that has uncountable problems.
There are many free OS out there which unlike Windows are not vulnerable to viruses. Try Ubuntu.com for example.

Nigfhtelf;
Windows are easier and we used to of it and glued.

Syanjali,
The first time I got windows, it took me about a year to be able to write a essay on it. I understand that we are used to windows, I still am. I just found a way to save money and not have to worry about viruses and am sharing it.
Thanks for your comment its very true.

try malwarebytes.com