Boot-time FastScan
When Trojan Remover is first installed the FastScan component is set to run at boot-time. This is the recommended default.
You can disable the FastScan from running at boot-time by starting Trojan Remover and selecting Options. Click on Allow Boot-time FastScan to turn this option off - the green tick will change to a red cross to show this option is disabled. Click on Allow Boot-time FastScan again to turn the option back on.