[purenuman]

Originally Posted by lemarsh

not aware of downloading any new codec, unless Premier Pro has done it.

However, it is, at present, only happening in folders that have videos in it.

How do I check or correct codecs?

Right click 'My Computer'> Properties> Hardware> Device manager> Expand 'Sound, video and game controllers'> Double click 'Video Codecs'> Click on the Properties tab.

I'd check the properties to see if opening the properties crashes explorer. If it does then you know the one that's the problem. You could then remove it and download a dif version.

If opening the properties does not reveal the problem codec I suppose you could remove the ones you can easily replace from the net like DivX or Xvid etc. Just don't remove anything you can't replace....