How to fix cannot open MP4, FLV files on KMPlayer

KMPlayer is the most powerful music and movie player currently used by many people. This software supports most of the most popular Video and Audio formats today.

However, there are some cases when you install it to use, it is not possible to view MP4 and FLV files stored on the computer, while viewing other formats normally. So the reason is? And how to overcome this situation?

Please download Download.com.vn to find out the causes and how to fix the error of not opening MP4, FLV files on KMPlayer in the following article:

How to fix the error of not opening MP4, FLV files on KMPlayer

Method 1:

After you have installed KMPlayer but still cannot open MP4 and FLV formats, your computer lacks the Video Codec to play these formats. So please:

  • Search and download Codec for Video files here .
  • Or install the K-Lite Codec Pack Mega music and video decoder into your computer.

Method 2:

Step 1: Click the Start button in the bottom left corner of the screen, type Internet Options into Search programs and files, and open Internet Options .

How to fix cannot open MP4, FLV files on KMPlayer

Or open Internet Explorer , click Tools and select Internet Options.

How to fix cannot open MP4, FLV files on KMPlayer

Step 2: The Internet Options window appears, click on the Security tab , then drag backward and click the Custom level button ...

How to fix cannot open MP4, FLV files on KMPlayer

Step 3: The Security Settings - Internet Zone window appears, navigate to ActiveX controls and plug-ins and select Enable for all the following sub-items:

  • Allow previously unused ActiveX controls to run without prompt.
  • Allow Scriptlets.
  • Automatic prompting for ActiveX controls.

After ticking, click OK to save the settings.

How to fix cannot open MP4, FLV files on KMPlayer

Error correction video cannot open MP4, FLV files on KMPlayer

You can do the same as above if you cannot open other formats. Hopefully, one of the two ways you can comfortably watch your favorite movies whenever you want. When using MKPlayer you can also change the video playback speed easily.

In addition, you can refer to some other software such as Windows Media Player , FLV Media Player , Media Player Classic ... to watch movies, listen to music for free.

I wish you successful implementation!

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