Vista 86 is actually 32bit version. The 64 bit version is better for gaming, but you will probably have more problems finding drivers that work in 64 bit. 32 bit is more stable, but only goes up to 4GB of ram. Add anymore to that and windows wont use it.
so the 32-bit is not good for gaming?? i see its up only to 4GB,anyway i just wanted to have another 2GB on my ordinary 1GB.lucky i passed here and didnt plan to go higher than 4GB.but,you said windows wont use it??is it the pc is broken??