Change back. There are some old machines that can't do this. Your post omitted details is like "it doesn't work." Tell more.
Hello and thanks to everybody who will help me to fix this problem
Well problem is that i cant play any video on youtube in HD (720,1280). Im not sure why but like 4 years all videos were running without any lag and today it started lagging when i put video in HD.
It seems like it is problem with PC because i tried more browsers (chrome, firefox. internet explorer) but outcame was always same.
Somebody know where is problem? (Sorry for bad english)