Playing MP4 files on your Windows 10 computer is usually a breeze, as the operating system often handles them automatically with its built-in media players. If you ever encounter an issue, the fix is typically simple: you can set a preferred default player, like the Films & TV app or Windows Media Player, or download a versatile free alternative such as VLC Media Player. Just right-click the file, choose “Open with,” and pick the application that suits you best, ensuring your videos play smoothly every time.
Tutorial – How to Play MP4 Files on Windows 10
This section will walk you through the simple steps to get those MP4 videos playing smoothly on your Windows 10 computer, whether you’re using built-in tools or need a little extra help to get things going. It is a straightforward process that anyone can follow to enjoy their media.
Step 1: Locate your MP4 file.
Find the MP4 video file you want to watch on your computer.
You can usually find your videos in common places like the “Videos” folder, “Downloads,” or wherever you specifically saved them. Think of it like finding a specific book on your bookshelf; you know where it usually lives. Knowing your file’s location is the first vital step to getting it to play.
Step 2: Double-click the file to open it.
Simply double-click on the MP4 file, and Windows 10 will try to open it with its default video player.
Most of the time, Windows 10 is smart enough to know what to do with an MP4, which is a very common video format. It will likely launch the “Films & TV” app, or perhaps the old reliable “Windows Media Player” to start playing your video content immediately.
Step 3: If it doesn’t open, right-click and choose “Open with.”
If double-clicking doesn’t work or opens the wrong program, right-click the file and select “Open with” from the menu that appears.
This action gives you more control over the situation. It’s like having a universal remote control for your files, letting you pick exactly which app you want to use for that specific video. You might see options like “Films & TV,” “Windows Media Player,” or even a web browser if you have one set up for media viewing.
Step 4: Select your preferred media player.
From the “Open with” options, choose an app like “Films & TV” or “Windows Media Player,” or click “Choose another app” to see more choices.
If you already have a favorite player installed, like the free VLC Media Player, choose it from the list. If you don’t see a suitable player that you like, you can look for one in the Microsoft Store, which often has great free options available for download.
Step 5: Optionally, set a new default player.
After selecting an app, check the box that says “Always use this app to open .mp4 files” if you want it to be your permanent choice for MP4s.
Setting a default is super handy for future use. It means next time you double-click an MP4, it will automatically open with your chosen program, saving you a few clicks and making your life easier. It’s like telling your computer, “Hey, this is my go-to for these types of files from now on.”
Once you’ve followed these steps, your MP4 file should be playing perfectly on your screen. You’ll be enjoying your video content, whether it’s a home movie, a recorded lecture, or a funny clip, without any further hassle or technical roadblocks standing in your way.
Tips for Playing MP4 Files on Windows 10
- Consider VLC Media Player: It’s a free, open-source player that handles almost any video format you throw at it, including MP4s, without needing extra codecs or complicated setups.
- Update your display drivers: Sometimes, outdated graphics drivers can cause playback issues like stuttering or poor quality, so keeping them current can help ensure smooth and clear video.
- Check for Windows updates: Microsoft often includes media playback improvements and bug fixes in Windows updates, so make sure your system is up to date to get the best performance.
- Convert problematic files: If an MP4 file still won’t play, it might be corrupted or encoded in an unusual way. Try converting it to another MP4 using a free video converter tool, which can often fix these issues.
- Free up system resources: Close unnecessary programs running in the background while playing videos, especially high-resolution ones, to ensure smooth playback without lag or freezing.
Frequently Asked Questions About Playing MP4 Files on Windows 10
Why won’t my MP4 file play on Windows 10?
Sometimes, an MP4 file might be corrupted during download or transfer, or it could be encoded with a special, less common codec that your current players don’t recognize. It’s also possible your default player is misconfigured, or you simply need a more versatile media player installed on your system to handle it.
Do I need to download a special codec for MP4 files?
Generally, no. Windows 10 comes with built-in support for most common MP4 codecs, so most files should play without extra installations. If you encounter a rare one, a robust player like VLC Media Player usually has its own comprehensive set of built-in codecs, so you won’t need to install anything separately.
What is the best free player for MP4 files on Windows 10?
Many users swear by VLC Media Player because it’s free, incredibly reliable, and plays almost any video format without issues, making it a universal choice. Windows’ own Films & TV app is also a solid and convenient choice for basic playback of common video types.
How do I change the default program for MP4 files?
To change the default program, simply right-click any MP4 file, select “Open with,” then click “Choose another app.” Pick your desired player from the list, and make sure to check the box that says “Always use this app to open .mp4 files” before clicking OK to confirm your choice.
Can I play MP4 files directly in my web browser?
Yes, you absolutely can. Most modern web browsers like Chrome, Firefox, Edge, and Safari have built-in support for playing MP4 files directly. You can often just drag and drop an MP4 file from your computer into an open browser tab, and it will start playing right there in your browser window.

Matt Jacobs has been working as an IT consultant for small businesses since receiving his Master’s degree in 2003. While he still does some consulting work, his primary focus now is on creating technology support content for SupportYourTech.com.
His work can be found on many websites and focuses on topics such as Microsoft Office, Apple devices, Android devices, Photoshop, and more.