Bigger than XP. This 40% actually includes the necessity of WIN7, some spare system files, and some programs that are automatically loaded when booting. If you want to reduce the memory occupancy at startup, you should reduce the programs that are automatically loaded at startup. Specifically, you can use the "boot acceleration" of 360 security guards to optimize the settings.
It's normal that CPU only accounts for 1%, because you haven't run any large programs or games. The smaller the CPU occupancy, the higher the CPU performance. Don't worry.