New
#11
One thing though - HPs were not about guests and hosts - they were the same OS using different profiles, enabling and disabling hardware items. My method will do the same using multiple booting OSs - not rel host and guest, in the sense that only one OS is running at any given time.
However, Antman is right - I answered the question without really addressing the practicality of the solution. In this case I can understand the OPs concern as to why this was removed, and have thought more than once that it would be nice to make one for gaming exclusively - some of the hardware on my machine is not gaming related, and when you're playing games fully maxed out in settings for a stunning visual presentation, every little bit helps.
Also, consider this - nVidia drivers were 77 MB last time I checked, for my GTX 260s. The mobo driver package was at 100+, and the driver and software package for my Saitek Cyborg RumblePad v3 weighed in at 75 MB - with an additional 200 MB for the friggin software.
Even with hyper-efficient memory management, if I play a game that has no support for allowing me to use a gamepad (perish the though!) disabling that particular device could save me enough memory for a modest (5%) increase in performance - but, again, every little bit counts.