Windows 11 doesn’t support MP4 files by default.
Windows 11 doesn’t support MP4 files by default.
These files use a video codec like HEVC. For Windows, you might need to install it via the Store or use VLC or another player.
Since Windows 10, native support for HEVC (H.265) videos isn’t available without an additional cost from the Microsoft Store. Previously, there was a free option for OEMs, but it seems inconsistent. Simply installing VLC will let you play virtually any video format.