Problem with driver 465.12

Hi all, I have followed the instructions from here one by one. It requires me to install the latest driver which is 465.12, and I did so. I run the samples and did everything given in the instruction and passed all test.
However, after I restarted my laptop, the Graphic card didn’t work, and I have to install the driver again to start my GPU.
With this driver I cannot use dual screen, when I use extend screen my external screen will flash rapidly.
My graphic card is GTX 1650.

Can someone explain why its happening, and how do I install the driver correctly?
Thanks