Regarding your first question, although complicated, loading an os or application in the Ram is somewhat of a complicated process, and for the most part requires alternative hardware to work right. I have seen Operating systems and particular applications work strictly off the ram, and they were very fast! YEt it is a very expencive and complicated process for it all to work out properly... As for your second question, partitions are a very effective way to keep your system runing fast and safe, i highly reccommend partitoning out the first 4 gigs or a drive for the os and using the remaining for games and software, this cuts down defrag times and also seperates software for the system dirs, which can be great for futeure formating, without the loss of the OS =Drew