How in gods name do i delete trojans viruses etc?

my friend has a computer thats full of spyware adware viruses and trojans i really wana help him delete all this do i need 2 install sum stuff 1st?? 1 of them is a trojan and i know theyre hard 2 shift any advice n e 1?????

thanks a lot in advance

How in gods name do i delete trojans viruses etc?internet security software

Great Question and thank you for particpating in Yahoo's Q %26 A. You're experiencing one of the most common issues that we have with our computer today. It's unfortunate, but unless you specialize in Viruses, Trojans, Variants, Spyware, Adware, Worms etc. you'll have a hard time getting rid of all of the problems as some are very hard to deal with. Most have remnants spread all over the computer in case you find parts of them and remove them. After restarting the computer, they just come back. If this is the situation, you have two options. Either purchase a good all around Antivirus Program such as Norton Symantec or CA (Computer Associates Internet Securtity Suite "Etrust". Next option would be to remove that copy of Windows from the computer and re-install a fresh new copy. Make sure that you first disable the "restore back" function in the control panel. Failure to do this can and will problably allow some of the viruses to start back up even after the new copy of Windows is installed. Then, upon choosing and installing a good Antivirus Program, you should have no more problems. Larry (Radio Shack 01-9590)