Video Codec SDK Ffmpeg for application users

Hello, my name is Leo. I recently have been having a problem with my NVENC encoder for OBS Studio. I always get an error message saying “Failed to start recording” “If you are using AMD or NVIDIA encoders please make sure your drivers are up to date.” My drivers are up to date. I read that a fix for this is downloading the NVIDIA Video Codec SDK. I saw for application users (me) that I have to download the Ffmpeg or the Libav, and when i went to the link, I had NO CLUE on how to download it. Could you please walk me through the process? Thank you. Here is the link: