it doesn't matter!

Because your system disk is not a system partition (normally it should be a system partition);

that's why there are two main partitions.

the simple test method: if there are two main partitions to install the system, restart it after installing the system; if it can access the system, it doesn't matter (otherwise, it needs to be reinstalled)

and: if there is a system with WIN7, the system disk is 31 G, which is a little small! (Can't load too many things)

Additional answer:

The disk display is normal, no problem! As long as it is not man-made or virus that damages the system, your system can be used normally!