Default setting for Windows 7 is to make a 100MByte partition (on a spinning hard disk, SSD hard disks use a 350MByte partition for that same purpose) when installing on a unpartitioned disk. But if the disk already contains partitions Windows will use these however it sees fit. Anyway, if your system has such a partition, it becomes essential in the Windows boot procedure.
Not sure what to make of the first partition in your list, as I can't be exactly sure how the boot procedure on your computer was configured.
This is taken from my own system. I added a 120GByte SSD hard disk to an already working PC (disk0). Afterwards I installed Windows fresh on the SSD and as you can see, there is a 350MByte partition (label: 'System Reserved'). This partition must be 'Active'. Depending on what software you use to check the partition structure of your disk, the terms 'Active' and 'Boot' are used to indicate the same thing. The Windows disk manager makes a distinction here, as you can see in the screenshot.
So I am not sure what to make of the 1st partition on your hard disk. Likely when you make the 3rd partition the boot partition your system will start working again.