Guys, I need some help.

In the past I thought my videos were corrupted, but they are not.
The play properly in a windows 8 machine (64bit), but do not play on my workstation at home running Windows 7 pro 64. I realized that its probably a codec that I am missing, but I am unable to find it anywhere.

I tried to install "windows codec pac" and my antivirus flagged some malware - this was from CNET.
I wonder if DJI can please make the codec avaiable on their download page or if anyone can please offer some assistance.

Thank you

Is anyone else having this problem?