i have win 7 ultimate 64 bit os .....i hv 4gb ram ,bt just after booting initially i saw from system information that my total physical memory is 4 gb,installed memory is also 4gb & available memory reads 3.21 gb or so... but if i start to do anything & after having finished that task & closing that particular application (browser,games etc) completely whn i recheked it i found my total & installed physical memory read the same as previous but the available physical memory comes down to 2.73gb or something like that..
i can't guess wht's wrong ..plz suggest me solution for stopping this..
thanks in advance