Tthis last few months it seems many windows 7 X64 installs I take care of, regardless of AV, time since install and other such things always seem to want 4 gigs of RAM to run well, maybe 3 in a pinch but definitely not 2. Normally I would just play with task manager, some kind of machine fixing program and tasklist /svc ( https://technet.microsoft.com/en-us/library/bb491010.aspx ) to find the culprit. However the first, lying piece of junk that it normally is, gmer, a2 hijack free and tasklist reveal nothing and say the RAM is cozy but nowhere near full and playing with the swap file. An exploratory nuking of the usual suspects (mainly windows update related) gains me very little either. For most purposes this is fine and for desktops where I can bung 4 1 gig sticks in (thank you CEX for flogging them off at a couple of quid a pop) then I do not mind much at all, however laptop DDR2 is getting quite expensive for what it is (though I have seen the whole "new ram released, old ram gets legacy device prices" dance several times now so I probably should have stocked more. Probably should also do DDR3 at this point as well) and that gets annoying -- my Linux installs all seem to do OK with libreoffice and firefox with the same usage patterns and I should not really have to be doing this for basic office machines sporting mid range core2s and 2 gigs of RAM. Have I missed anything or do I go RAM scrounging?