Switching to Software decoding bypasses your GPU entirely, using your CPU to decode the video. This is a temporary fix (CPU decoding is slower, uses more power, and may introduce lag), but it instantly confirms whether a GPU/decoder issue is the cause.
: If you are using a "Windows N" or "Windows KN" edition, your system lacks the Media Feature Pack , which includes the codecs needed for software decoding. Resolution Mismatch parsec error 14004