Most users can let their operating system handle things from now on.
The System Reserved Partition or EFI System Partition on your hard drive is a tiny sector Windows uses to house system files such as the Boot Configuration Database, Boot Manager Code, and Windows ...
It is essentially never a good idea to make all the system directories on separate partitions. In particular, only in very unusual circumstances would you want /var and /usr to be separate ...
The error “Windows detected that the EFI system partition was formatted as NTFS” usually occurs when you install Windows on a GPT disk and the EFI system ...