Adobe Premiere Pro no audio track and not some video formats?

Good day !

Installed windows 10 and after installing the video card drivers were immediately installed adobe premiere pro and just tested: threw a video of all the rules, threw a video in avi format and again all norms. In short, no problems. Through the day I had to reinstall windows. Again, I immediately installed the graphics driver and installed premiere pro, BUT now the program won't work with AVI format, mp4 works but no audio when import video in mp4 the video shows but no audio track, I'm interested in one thing, why did this happen ? the first time when I installed everything worked but when I reinstalled everything stopped working
June 8th 19 at 17:01
1 answer
June 8th 19 at 17:03
Maybe the codecs to install? Using mediainfo view of the file's properties and throw off to watch us. In particular, audio.
I am interested in one) for the first time when Windows was installed everything worked but when I reinstalled now not working))) - shau commented on June 8th 19 at 17:06

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