To install a 64-bit version of Windows, you need a CPU that’s capable of running a 64-bit version of Windows.

The benefits of using a 64-bit operating system are most apparent when you have a large amount of random access memory (RAM) installed on your computer, typically 4 GB of RAM or more.

What does a 64 bit OS mean?

A 64-bit processor is capable of storing more computational values, including memory addresses, which means it’s able to access over four billion times the physical memory of a 32-bit processor. The first fully 64-bit operating system was Mac OS X Snow Leopard back in 2009.

What is the difference between 32bit and 64bit operating systems?

Another big difference between 32-bit processors and 64-bit processors is the maximum amount of memory (RAM) that is supported. 32-bit computers support a maximum of 4 GB (232 bytes) of memory, whereas 64-bit CPUs can address a theoretical maximum of 18 EB (264 bytes).