Unreal Engine Vulkan Problem

Hello , i have a Nvidia Problem and Vulkan Runtime
the Problem when i Try to Work in Unreal Engine Its Crash Always ,
so i try to DownGrade the Nvidia but its Give me Errors Too
so if anyone give me steps for downgrade i will be thankfull

Do you get any logs?
What if you try to open Unreal Engine from the terminal?
Any log files that Unreal Engine could generate too?

We need more details.