My computer has a virus! help?

my personal computer features a trojan horse agent.xj and absolutely , it has a rooting system that re-loads it when it really is removed.i want to find out how to take out this virus or where to start with the idea because our computer is usually slowly turning into useless, and when i payed any hefty price as it, and i have no idea the direction to go.help please

1…disappointment system Restore

TWO…Reboot the computer…go straight into safe mode with networking

3.Download Malwarebytes anti-Malware no cost………..

http://download.cnet.com/Malwarebytes-Anti-Malware/3000-8022_4-10804572.html

Download for the Desktop….nearby browser…..available and work Malwarebytes….up-date it….100 % scan……

Download the actual free Seriously Antispyware system.Put it using a flash commute.It can be a.com program that one could run soon after starting your computer in Protected Mode.Navigate towards your flash push and double click this software (it has a numerical name to hoodwink your malware into thinking doable going provide to defeat it) and be prepared to wait a fantastic long while precisely as it meticulously scrubs your components looking for those instances connected with offensive plans.Don’t possibly be surprised as long as they number within the thousands.When its finished it will show people the report and have it you want it in order to delete every one of the nasties.I imagine that you will need to say without a doubt so just do it it will probably clean in addition to clean as well as clean after which tell to reboot in order that it can clean more as your computer reboots suitable healthy state.The name with the program an individual download is going to be sas12345.com or something such as that.I will be not looking to tell to run a virus.You can do an Web search and it also will let you know what I have just taken enough time to say.