The other day my grandson’s girlfriend suggest that I use Opera as a web browser I loaded it & now I can view Videos from YouTube without first downloading to my hard drive. The videos on my hard...

I do have F-Secure I suppose I could turn it off & see if the problem persists with the other Programs i.e. media player etc. although I can live with running VLCMedia Player to view video.
I would...

I loaded the K-lite codec pack but that made no difference so I downloaded & installed VideoLAN[/URL] player that has worked perfectly so I have set it as default program to run videos.
There is...

no it happens with all videos but I will try the K-lite codec pack tomorrow
thank you for your input

I have had a problem viewing videos on my laptop for some time.
When I play a video the sound works fine but there is no picture.
I have tried opening the videos with several players i.e. power DVD...