Please forgive me if I have this in the wrong category, and a bit wordy.
Model Dell XPS 18 with i5 and 500gb HDD and 32gb SSD.
The primary drive was repartitioned into a 120gb drive for the OS and a 324gb for files. Under disk management there are shown 8 partitions: 500mb EFI system, 40mb OEM, 490mb OEM, 120gb Primary with boot page and crash dump, 350mb recovery, 324gb primary for files, 10.42gb recovery, 8.97gb OEM. The 32gb SSD drive only displays an 8gb hibernation partition. Within the Intel Rapid Storage program it lists both the 8gb FFS and a 22gb Dev_Cache.
Why are there 2 recovery partitions (350mb and 10.42gb)?
Why are there 3 OEM partitions (40mb, 490mb and 8.97gb)?
I installed the win8.1 update and intend on restoring the machine back to win8 with a Dell OS recovery and Restore USB Key. My understanding is the Win8.1 update deletes the original Dell win8 recovery image. If there is no more dell recovery image available, can the OEM partitions be removed to recover space? Future file and image backups can be managed via windows.
The XPS 18 machine does not use windows method of hibernation, but uses Intel Rapid Start with the hibernation partition on the SSD. Because the hibernation data is on the SSD drive, can the 6.6gb hiberfil.sys file in the root c: be deleted without any performance hit or other issues?