Game doesn't launch on laptop

Ive tried several solutions on the forum and online.
when I click launch, the button flashes gray like normal, but game doesn’t launch
I check task manager on 詳細 tab i think it means ‘details’ and warcraft III process is there briefly at the bottom then it goes away
i tried to allocate it to high priority like the topic on this forum suggests but by the time i right click on it it has already gone. crashed i guess
it was working fine a week ago. can anyone please tell me what is going on and how to play wc3?
i have played wc3 for 19 years and the only times ive had this problem is when some of the files are deleted somehow, but i did a check on the blizzard launcher and it said 100% fine.
I dont understand why it is crashing for no reason. i just upgraded to reforged this year and there are so many things like this.