In today’s world, you may hear music almost every day. When you walk on the street, you will hear music from many shops that play music to attract customers. When you go to the cinema to watch a film, you will hear music from the film from time to time. So why they add music to video? What're the benefits of background music?

Background music will help audiences feel more engaged when they watch videos.
Using suitable background music will enhance your video.
Background music can heighten the atmosphere, render emotions and improve the artistic quality of video products.
Listening to background music improves people’s mood and enhance their performance in creative works.
Listening to background music may remind you of something in your old memory.
Background music can attract more viewers to watch your video.
Do you like to listen to background music? Do you want to make your video more attractive? The next part will illustrate to you how to add music to video and edit on your computer and on YouTube.
To make audiences feel engaged in your video and increase viewers, you need to add background music to video now. Here introduce three ways to add music to video free. You can add music to video on computer and even on YouTube.

How to add music to video and edit it on computer
If you want to add suitable background music to video, a video editor is a necessity. Since there are many video editing software on the market, here recommend you a free video editor without watermark – MiniTool Movie Maker.
MiniTool Movie Maker is an easy-to-use video editing software for beginners. With it, you can trim, split your video and delete unnecessary parts. To enhance your video, it allows you to add transitions and effects to your video. Moreover, you are able to add titles, captions and credits to complete your video. If you want to create a trailer quickly, this tool also offers you some cool movie templates.

Many of you have reported that your monitors couldn’t display full screen when they play games. To be specific, a thin black bar appears on the side of the displayer, stopping it from going full screen. This issue always happens after upgrading to Windows 10.

On the previous operating system, you can play games very well. But the full screen issue occurs after installing an update. Why is monitor not displaying full screen in Windows 10? This is caused mainly by the video adapter driver or the display settings

So, how to full screen in the event of Windows 10 not using full screen will be a question. Now, let’s go to see some useful solutions.

Why Need to Edit Audio for Video
The audio track of video can be a double-edged sword. Matched audio tracks can make the audience feel more engaged, while unmatched audio tracks would distract the audience’s attention. Here are some skills for editing audio in video.

How to fade in and fade out audio in video.
How to add your own audio on YouTube video.
How to change the background music in video.
How to Edit Audio for Video
There are three video editors helping you edit audio - MiniTool Movie Maker, Windows Movie Maker and Wondershare Filmora. With these video editing tools, you can edit your audio at any time. Even if your internet connection goes down, you can continue to edit audio for video.

MiniTool Movie Maker

MiniTool Movie Maker is an ease-of-use video editor. If you’re an amateur in video editing, this free tool will help you a lot. With its intuitive interface, you can create a cool video with ease. This video editing tool allows you to import video, music and picture in many formats.

Besides, there are a few templates to help you create a video in a few seconds, the only thing you need do is import media files you prepared.

For users, you can add audio to video, save your favorite clips of a video by trimming and splitting video, and fade in and fade music.

This tool offers many stunning transitions and effects, you can apply them to enhance the video. To make your video easy to understand, MiniTool Movie Maker also supports adding captions and subtitles to your video.

Windows Movie Maker

Windows Movie Maker is a free video editor published by Microsoft. You are able to add narration or your own audio to a video.

Windows Movie Maker supports triming and spliting video, adding transitions, effects and animations. This free tool also allows you to add titles and credits.

Moreover, it’s very convenient for you to upload video directly to video sharing sites like YouTube, Facebook, Vimeo, etc.

Wondershare Filmora

Rundll32 is the acronym of Run Dynamic Link Library 32-bit. The genuine rundll32.exe file is an executable file on the hard drive of your computer and it is also a software component of Microsoft Windows. And you shouldn’t remove it unless it doesn’t locate at C:\Windows because runDll is a critical Windows component and a Windows command-line utility program.

In the Windows 10 operating system, Microsoft offers a feature that allows users with touchscreen-enabled PCs to touch the screen instead of using a keyboard and mouse to use the machines. This feature is called Tablet Mode.

That is, if you enable this mode, you can interact with your PC using its touch screen, just like a tablet. In Tablet Mode, you can see large buttons, a back button is next to the Cortana button and app icons are gone (can be seen in Settings).