I want to dual boot Windows and Arch Linux on my machine. So I bought a new SSD, which should only contain the linux installation. However in order to achieve this, I have to convert from Legacy Bios to UEFI. So I need to convert from MBR to GPT. I wanted to use MBR2GPT.exe for this purpose. The problem is, that MBR2GPT only works, when I have three or less partitions in the MBR partition table.
Currently I have two drives in MBR, which is drive 1 and drive 3. Drive 3 contains my windows installation and consists of two partitions, one being the recovery partition. Drive 2 is for additional space and also consists of 2 partitions, one being a system-reserved partition. I'm unsure which partition I should delete. I would like to keep the recovery partition, because I don't have a windows disk.
I have two questons:
Is the system-reserved partition necessary for booting? If so, why is it on my second drive and what is the exact purpose?
Is there another easy way to convert, without deleting a partitions?