The context of the question is:

It can be encrypted by a computer or a system where it can be partitioned or where it boots. source

    1 answer 1

    Windows 10 separates the Reserved Partition, where it stores BOOT files, and System Partition, where the system folders are located (in fact, the C: drive, although you can try to install the system without naming letters).

    • Fine. Thank. And under the entire system drive they apparently meant a physical disk? - user208916
    • @hipster Yes, System Drive = drive where System Partition is located :)) - Viktor Tomilov