Extract trainer and make sure trainer/launcher/editor is in a folder excluded from virus scans. Empty quarantine folder if needed or set anything trainer related (paths and EXE's) to ALLOW. Disable any Live/Active/Real-Time tools which may trigger false positives in security software which may terminate the game/trainer when it's activated or options used.
may need to be added to exclusions as well. Run trainer as admin, read the instructions and try again.
Anti-virus help page. Link
I discovered that Win10 re-started the win defender and I had to turn it off as well as another setting which would re-start defender.
I still can't get any functions of the trainer to work.
It activates at the main menu, but nothing works in the game.
Would REALLY like a GOG specific version of the trainer!