Audio is getting out of sync

I am having an issue on youtube videos and KMP player. any videos I play, the first 10mins is ok and after that, the sound is slightly getting out of sync with the video, after 5 more minutes there will be 1-2 sec delay

Windows 10 64bit updated
Google chrome updated
Adobe flash updated
KMP updated
 
When posting a thread of troubleshooting nature, please be sure to include your full system's specs. It's a good thing that you've stated the other facts 😉 If we're dealing with a laptop, then include the make and model number, if you could kindly.

Have you made sure your BIOS is up to date?
Have you made sure your drivers(namely audio, chipset and GPU) are all up to date?
Have you tried uninstalling GPU drivers with DDU and reinstalling the latest revision?
Does the issue crop up when on another browser?