I have an enormous (12GB, soon to be 24GB) amount of memory, surely using the page file is pointless? So why is Vista doing it? For example, having recently rebooted, I've got 7GB of memory free (not even used for cache), but 5GB of page file! Why not keep that 5GB in RAM for now? RAM is MUCH faster than hard disk!
I decided to try turning off the page file. Nothing happened. I put it to the minimum it would take (16MB) and it did nothing, it just keeps using slightly more than the amount of memory used by applications. Why? (And yes I rebooted after changing the settings, even though it didn't prompt me to).