First, read the English article below.

Download your Mp4 file from a trusted site, retrieve it from a USB drive, or simply open it from your computer’s hard drive. It is important that you know the filename that it is saved as and the location where it is saved. Click “File,” then “Open,” and then select the MP4 File from your File Browser. After you have located the video in your OS (Operating System), double click the icon to play the MP4 file. If you double left click the video, your default media player will activate and will play your video. The video will most likely open with Windows Media Player. All PCs running any version of Windows come with this built in video player. Windows 11 and under will not open MP4 file without a codec or third party decoder. Install the Microsoft recommended DirectShow-compatible MPEG-4 decoder packs. You can also download codecs from http://www.microsoft.com/windows/windowsmedia/forpros/format/codecdownload.aspx. If you are running the Windows OS, instead of double clicking on the MP4 file, you can also right click on the MP4 file to choose what media player you’d like to use to play your video. This will bring up a drop down menu. " From the drop down menu,  a new cascade window will open. A list of video players will come up. Most likely, they include "Windows Media Player" and any third party media player that has been installed. If you have downloaded a codec or a decoder pack, your desired MP4 video will open in windows. 

Now, please write a short abstract for it in Vietnamese. Abstract:
Tìm video. Nhấp đúp vào tập tin. Cài đặt bộ giải mã hoặc codec. Nhấp phải vào biểu tượng video. Nhấp vào "Open With" (Mở với). Nhấp vào Windows Media Player.