Disabling preferch and Superfetch is actually not a good idea and leads to the general performance decrease. You can disable it only if you got really low memory on the system, like 2GB. But then why you ever installed Windows 7 on that system Secodnly - disabling pagefile/swap is really NOT a good idea. When your system lacks the memory it will drop important data to the pagefile. When you disable it then Windows (well, actually any system) will try to save itself from resource locking and will just kill the application to spare some memory. Also some games just require swap/pagefile to exist - for example most of Unreal Engine based games, and they can misbehave without it. My suggestion - get more ram - if possible always fill the machine to the max of available ram - ram is cheap nowdays. If you cannot afford it then get at least 6 or 8 GB - it is enough for most demanding games and system will not have to hit the swap. Then you can think about upgrading your HDD, and for FRAPS it's even better to get to smaller disks and put them in RAID0 or Windows Dynamic Disks and making RAID0 from it and dedicate it just for not so critical data like FRAPS and temp files. You can disable Prefetch and Superfetch only on SSD disks whicha re so blazing fast that there is no point in using those technologies. Swap file also could be disabled but only on that disk to save up free space - so it should be moved to the normal HDD.