what computer memory is usable

[sachin_mishra]

Hi....

My system speed system is too slow after installing window vista .Although i have bought 512 MB ram from memoryx.net still could not get the good speed. I can not uninstall vista because i have some software that will run only on vista. So, may you suggest me that what should i do to get good speed?????

[plgffl]

I will that 1 G is the minimum, less than that, the speed gonna be very slow!