Just because the computer is saying Out of Memory, that doesn't imply that you are out of RAM. It could be your paging file on disk is either too small or just not set correctly. It could also mean that your disk is slow.ut in any case, low memory is not the same as disk capacity, so your comment that you 'have enough memory on disk C' is incorrect. Disk capacity is how much data the hard disk can hold. The data is stored on the hard disk whether or not the computer is turned on.