RomRaider

Hello Romraiders, Newbie in CT, USA. I have a 99 M3 that i just swapped to a 6 speed. Would like to get rid of the check engine light. I got the cable, computer, quickflash and have been able to download my partial and full bin files. But i have no idea what to change. The MS41 portal program looks like a great idea for my issue but the file seems corrupted with a WACATAC trojan virus and my windows defender erases the file everytime. Can anyone point me in the right direction? Many thanks!