dxgkrnl.sys: This file is the DirectX Graphics Kernel, a core component for handling graphics tasks in Windows.
ntoskrnl.sys: This is the Windows kernel, the core of the operating system that interacts with hardware and software.
nvlddmkm.sys: This is the Nvidia Display Driver, responsible for controlling your Nvidia graphics card.
Since all three files are involved in the error, it suggests a problem with the graphics driver interacting with the system kernel.
you might need to perform a clean install of your graphics driver. This involves removing all traces of the old driver before installing the new one. There are tools available from Nvidia to help with this process.
The following thread will help you:
Once you uninstall it properly then try to install latest graphic card driver, compatible with your graphic card as well as OS.