I'm running Windows 7 64bit, originally installed on my Samsung Slate 7 (it has 4 GB RAM). Swap is disabled.
Recently Windows has started to show me a low memory warning on about 3GB of RAM usage. I've disabled that warning, using an advice from the Internet. Now programs are failing with typical out of RAM symptoms at 3.2 GB.
Why won't Windows use the last gigabyte of RAM? According Task Manager there's a cache in that gig, but shouldn't Windows replace the cache with apps when demanded?
Note: when swap is enabled, the system freezes very frequently and this is another problem.