I'm planning to dual boot my system to run Ubuntu 14.04 LTS alongside Windows 8.1. When I went into the disk management application to shrink my main hard drive, I saw that there were already 5 partitions, i.e., 2 recovery partitions, 1 EFI system partition, the main C:/ drive partition(Boot, Page File, Crash Dump, Primary Partition), and D:/ Recovery drive (OEM Partition). I have read online that it is not safe to partition a disk beyond 4 partitions, as it will convert the disk into a dynamic disk. Is this true? And also, will getting rid of the 2 recovery partitions using diskpart cause any system problems?