Hello you experts out there, i will be very much indebted to you for some advice and recommendations in solving my problem.
Recently it was discovered that a trojan was downloaded on to my computer and its causing great problems to my pc,ie the changing of my home page, unusual pop ups that states" YOUR COMPUTER IS INFECTED CRITICAL SYSTEM ERROR.ANOTHER SAYING MALWARE THREAT AND YOUR COMPUTER IS INFECTED WITH A BACKDOOR TROJAN"
I WILL APPRECIATE IT IF YOU CAN GIVE ME SOME ADIVSE AND HELP ON WHAT TO DO AND HOW TO RESTORE MY COMPUTER IN PREFECT WORKING ORDER AND AND HOW CAN I REMOVE THESE PESTS.
THANKS IN ADVANCE.
BRIAN.

Here is all the info needed to get your comp clean, just a matter of finding sites that suit your skill level.
Securing Your Computer: Temporarily Disable Real Time Monitoring Programs.
http://wiki.castlecops.com/Securing_Your_Computer:_Temporarily_Disable_Real_Time_Monitoring_Programs
If Your PC is Infested w/ Spyware & Adware...
http://spywarewarrior.com/sww-help.htm
Trustworthy Anti-Spyware Products ( near the bottom of the page )
http://www.spywarewarrior.com/rogue_anti-spyware.htm
http://pandaman.my.contact.bg/Gen_MRI.htm
Note !!! Now, if you wasn’t able to clean your computer, perform the following, Special Clean instructions.
http://pandaman.my.contact.bg/special_clean.htm
http://www.malwarehelp.org/how-to-curepart-3-using-hijackthis.html
http://spywarewarrior.com/sww-help.htm
http://spywarewarrior.com/viewtopic.php?t=6917
http://spywarewarrior.com/viewtopic.php?t=6914
http://spywarewarrior.com/viewtopic.php?t=10
http://spywarewarrior.com/viewforum.php?f=30
http://www3.telus.net/dandemar/slowcom.htm
http://discussions.virtualdr.com/showthread.php?t=167915
http://www.wilderssecurity.com/showthread.php?t=50662
http://forums.techguy.org/security/208517-general-security-information-how-tighten.html



Important: Create a specific folder on your hard drive called HijackThis to keep its backups.
You can do this by going to My Computer (Windows key+e) then double click on C: then right click and select New then Folder and name it HijackThis. Download and unzip HijackThis.exe into this folder.
http://www.merijn.org/downloads.html Or, http://tomcoyote.com/hjt/
If possible run HJT in Normal mode ( not Safe ) with all your normal startup's working.
HijackThis Tutorial - How to Analyse your own log
http://spywarewarrior.com/viewtopic.php?t=3624
http://hometown.aol.co.uk/jrmc137/hjttutorial/tutorial.htm
http://www.bleepingcomputer.com/tutorials/tutorial42.html
http://www.malwarehelp.org/understanding-and-interpreting-hjt1.html
HijackThis log file analysis ( online )
http://hijackthis.de/index.php?langselect=english
Or,
http://startup.networktechs.com/page-68.html
http://hjt.iamnotageek.com

Don't necessarily believe the texts of those messages. They are more likely malware that is trying to get you to buy their fixes. There's probably not a trojan at all, it is the malware that you need to remove. Even the freebie "Ad-Aware" might do the trick.

In the long term you need some malware/spyware finders on your machine (anti-virus programs don't always look for these). Get recommendations here for some freebies because there are bogus ones around that actually put spyware on your machine - for money.

Try to avoid "Please help" as the subject line (that applies to every post). Give some clue instead, even "Suspected Trojan" would have been better. When you post your question this is mentioned. Avoid caps too.

Thx

DerekW