Originally Posted by Szaby59
I used the genuine MS ISO from MSDNAA, defragmentation is 0,27%, drivers are "up to date" (last driver from Toshiba was released in November...
Did you install it over another OS? If so, there might be things underneath it. Therefore, please backup your drivers and do a clean install with an actuall MS disk. Not ISO!
This may solve your problem. But, its your choice....