Since Trojans normally remain active in system memory, the initial step is to restart the computer system in order to clear the memory of any resident processes. When a threat is identified, the security program will normally prompt the user for a preferred action like delete, quarantine, or repair among others. Have the installation CD of the Operating System handy in case any of the system files need to be reinstalled due to corruption or infection. After completing the scanning and cleaning process, exit the security program and restart the machine allowing it to load in normal mode. When the desktop appears, remove the contents of the recycle bin by right clicking it and choosing the option empty recycle bin. Click on the 'Start' Menu and right click on the 'My Computer' icon and select the 'Properties' option. Select the 'Turn off System Restore' option in the 'System Restore' tab and click 'Apply'. Click on 'Yes' and then 'OK' to confirm the action. This is done to prevent the possibility of reloading the Trojan that may have been saved in the system restore points of the machine. Restart the machine to complete the process. Remember to keep the definition database engine of the protection program updated to prevent any future infections.