Hello, I have the same problem I just went on windows 10 with a second pc for some games like Gears 5 and Grid 2019 and no trainer works.
It starts then closes and nothing and I try to make an offline key and as soon as the message appears "Offline mod enabled" it also closes.
I have excluded all the file that leads to the trainer and uassi each trainer (exe) in windows defender and I even disable all possible protections and it does not change.
What should you do because it is still you that the scréers so you know what to do
Did you right click "unblock" after downloading on the second PC?