To get Windows into Safe Mode for some housekeeping functions the (reasonably) well known method is to hit F8 during the boot sequence to obtain the start-up menu. When you are running Windows under VMware Fusion on a Mac then this is not as easy as it sounds. Different Macs do special things with the function keys across the top of the keyboard—it is something that is not standard across different models. Sometimes F8 does brightness and other things. On my Mac Pro with wired keyboard F8 is marked as Play/Pause and most times kicks iTunes onto life. It does this whether the keyboard control is assigned to VMware or not. The various help guilds you get by searching the internet say to un-tick the “Enable Mac OS Host Keyboard Shortcuts” in the preferences but that doesn’t seem to be enough. The only way I could get anything to work was to go to Key Mappings and assign an unused “F” key to be F8 (fortunately the keyboard has 19 of them to chose from—I used F16).