Or during installation of the codec pack. MPC-HC options > Playback > Output > Video Renderer Otherwise it will convert the video to SDR so you can watch it (with proper colors) on a normal monitor/TV.

Madvr will automatically send the HDR metadata to your TV when it is HDR capable. To play such videos you need to use the included MPC-HC player and select Madvr as the video renderer. The Corporate version is a special version for use in a corporate environment. The Full version contains even more codecs and also has encoding support. There are three versions of the K-Lite Codec Pack: The Standard version contains everything what is needed to play all the commonly used formats. The very user-friendly installation is fully customizable, which means that you can install only those components that you want. Codecs are needed for encoding and decoding (playing) audio and video. Codec is short for Compressor-decompressor. The K-Lite Codec Pack is a free collection of codecs and related tools.

K lite codec pack standard