First, I should outline the main points. The essay should cover the importance of Windows 10 as an operating system, the necessity of a 64-bit version, and the correct methods to obtain it. But how to structure this? Maybe start with an introduction on the role of operating systems in computing, then move into why Windows 10 is significant. Then discuss the hardware requirements for 64-bit Windows 10, explaining the benefits over 32-bit. That's important because some users might not know the difference.