Dunno about the Dell PC's but the Mhave three partitions on the hard disk. C and D are formatted in NTFS and E is formatted in FAT32. The partitions are listed as "C" BOOT ; "D" BACKUP ; "E" RECOVERY.
On the FAT32 "E" partition are the files needed for system recovery in conjunction with the recovery disc. There is a note in the Medion Info advising NOT to delete this "E" partition on the HDD or NO system recovery will be possible if ever needed.