On 5/22/10, retard <re at tard.com.invalid> wrote: > On a 4 GB system you lose 600+ MB of memory when using a 32-bit operating > system without PAE support. You can run 32 bit programs on a 64 bit operating system. The point isn't that 64 bits is useless in general, it is just that most *applications* work just fine as 32 bit binaries.