Ct+H only disable the hotkey input, not the options.
Completely unplayable with all the crash before entering the battlefield from campaing.
Even with no options enabled at all. as long as the trailer is activated.
Do you have a mod installed? AV running, something messing with the trainer? Cause thats not happening before EVERY battle. There has been a few occasions of crashing but this is happening to a lot of people not even using the trainer.
I don't know what your basing your % on, but I can play for hours, go into 100 battles, sieges, and not crash once.
Considering I play this pretty much daily, I would say it crashes maybe 1%, which would obviously conflict with your statement, and the trainer is always on.
It is at
C:\Users\win10\AppData\Roaming\The Creative Assembly\Warhammer\save_games
For Win10. win7 is pretty much similar.
You may have to set folder option to tick 'Hidden Items' to see appdata folder