HELP! How to remove a trojan?

It keeps popping up system errow. Your system was infected by a dangerous trojan. I have ran avast, nortons, superAntispyware, windows defender, cyber defender,and spyware doctor and they don't even detect it. But it's there and very frustrating.

HELP! How to remove a trojan?antivirus software

i recommend manual removal of dangerous trojan: http://www.2-spyware.com/remove-dangerou...

this way you can be sure that every files related to dangerous trojan is removed.

i must say that Dangerous Trojan comes bundled with several corrupt security tools. its purpose it to scare people and make them buy fraudulent applications. you need to run antispyware scan to delete other computer parasites that comes with dangerous trojan.

HELP! How to remove a trojan?computer virus

Boot into safe mode and run superantispyware. Make sure you update the program first.

To get to safe mode, turn off the computer then back on. As soon as you turn it on repeatedly press F8 until the black screen comes up. Now use your arrows to select safe mode and hit enter. Log in. Everything will look very big, that is normal. Run superantispyware.
try a-squared free or go to savemybutt,com it has directions for removing trojans by way of SDfix.exe its on the home page under latest news
You can remove a trojan with Spybot Search %26 Destroy.