The windows operating system is the primary user interface developed by Microsoft. This serves as a user's main interface when transferring or traversing through files as well as run programs. Each updated version of Windows comes with new menu designs and ideally a better performance than the previous versions due to better optimization. To observe these changes, Windows 7, 8 and 10, the 3 most recent versions, have been tested by measuring each of their boot-up time and performances. Results verify that Windows 10 has a faster boot-up time and better performance compared to the previous versions.