I recently saw that my nearest Costco that all of their computers/laptops are selling with 64-bit operating system. I see no other electronic stores that only sell 64-bit operating system computers/laptops. The only thing I am skeptical is that when you use a 32-bit operating system, you will forget it is a 32-bit operating system and programs that use 64-bit CPU will not work. It may be better or worse for a program that is optimized for 64-bit operating system. The good part is that 64-bit is that it can run 32-bit and 16-bit programs. All I can say 64-bit is a good thing if your computer can handle it.