I cannot open a H264 file. What should I do? Help!

Virtually anyone has encountered some problems with opening unknown files while working on a computer. It can be very frustrating. Yet such problems, not only with H264 files, can be addressed in a standard way. Follow the steps below and we can guarantee that your problem with opening H264 will be resolved!

H264 File Extension

File
  • File type H.264 Encoded Video Format
  • File developer N/A
  • File category Video Files
  • File popularity rating
    • Star
    • Star
Preview

What is a(n) H264 file?

The H264 extension is assigned to high resolution video files that are video codecs. This video format is used by cameras, televisions and DVD and Blu-ray players. H264 is in the video compression codec that refers to the MP4 file. These files are encoded while using H.264 compression.

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How to open H264 file?

If given user account does not have necessary permissions to open files with H264 extension, it is highly probable that no program that supports given files is installed on the users’ system. Below is a list of actions user should pursue in order to resolve most common problems.

Step 1. Download and install application that supports H264 files

After the application has been installed, the system should automatically open H264 files with given application. Below is the list of relevant programs along with operating systems they are available for:

Programs that support H264 files

Step 2. Verify whether H264 files are associated with appropriate software

It is possible that an application that supports H264 files is not associated with such files. In such case, the program should by manually associated with H264 files (right-click on the file icon → PropertiesGeneral Tab → In submenu "Open with" and click on "Change" button. System will display a list of suggested programs that support H264 files. Choose the application by checking the box "Always use the selected application to open this kind of files". System will store this information in its registry and use it to open H264 files with the selected program.

Changing H264 file association in registry

File association for H264 files can be edited manually by editing appropriate entry in Windows System Registry. However, it is discouraged as it may introduce errors to registry if not done properly and may even damage the system.

Step 3. Check H264 file for other errors

  • H264 file was not copied properly from storage medium.
  • Antivirus application prevents opening H264 files. In that case it is recommended to exercise extreme caution and recover or delete infected H264 file. It is also advised to scan the entire system for malicious software and viruses with antivirus software.
  • For H264 files downloaded from the internet it is advised to check if the file has been downloaded completely and is not corrupted. If not, the file should be re-downloaded.

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