I dont know why you'd want to get rid of aero. I cant stand windows without it. haha but anyways aero can be disabled by right clicking in the desktop and selecting personalize. then scroll down a bit and you should see windows 7 basic. that will git rid of the aero i believe. Now the sound is quite simple too. Right click on the sound icon in the task bar (or type "system sounds" in the start menu) and then select under sound scheme "no sounds". that should disable all clicks and stuff within windows.