Quote: "I might be able to explain this - (If it's faster than XP on required computers, I might install the demon this one) People say Vista is a ram hog because when the look at the ram stats Vista uses like half of it, when they have 1gb ram. well when I had 256mb ram, XP used half and when I upgrade to 512mb, it used half again. When I posted on the Microsoft forums about XP performance issues someone explained to me that the OS gathers as many resources as it can whilst running for the most performance on the OS - though I've found it doesn't hog the ram as I've found when playing a game the ram seems to orientate itself...
How much truth I put there I don't know...but I think that may explain why."
This is because of caching. OSes automatically cache files and folders that it thinks you will open so you can quickly view those files, folders, etc. But they only use the ram that isn't currently needed. OSes act on the correct philosophy that if the ram isn't used, its wasted. Windows caches over time, so the longer you keep it running, the more unused ram it will fill. But if you play a game, it will delete stuff from the cache when more space is needed.