I am trying to find a good virus protection to use with trainers on my computer. I want to use one other than the one Microsoft gives
Protection is always a good idea for those concerned about things they don't know enough about. The downside about protection, in general, is there are levels of protection, so what works for one person might not be best for you. If it's overkill, it will slow down your computer. If it's inadequet you may find yourself with infections.
Think of it like body armor, the more protected the heavier it'll be to carry. You would choose your armor for the task.
Light Free would be Avast (Just the AV aspect you don't need all the other bloatware) and/or Malwarebytes. **Just an opinion, not an endorsement ** Personally I don't run AV, but my setup is a bit more advanced than most.
Remember at the end of the day, the best Antivirus is good common sense.
Also if you do go with AV make sure you add our Trainers to the Exclusion list. Instructions for popular AV can often be found here:www.cheathappens.com/virus_warning.asp