After installing Hyper-v the system become very slow on opening every application, windows media player sound bad.. and the games doesn’t go good, i need to lower the resolution to avoid image freeze.
The problem appear also if there are no VM running, with beta,rc0 and rc1.
Aero become slow. ALT+TAB between windowed application and full-screen application (games) takes about 4 seconds; normally it is very fast ( < 0,1 seconds i think it can't be calculated :D )
Disabling aero helps a bit the overall performance.
Deinstalling the hyper-v solves the problem.
nvidia 8600 256mb