Windows 8 installation: partitions?

I have a lenovo z5070 notebook and I installed windows 8.1 3 times
the first time while formatting the hd and creating new partition, a 3 partitions were created, recovory, MSR and system partition, after installing lenovo logo was appearing in the boot screen
second time I formatted only one partition called system which is about 300 mb is formed and thw blue windows logo appeared in boot screen
I then made a BIOS update and formatted
for the third time, it returned back as the first
can anyone know the reason? , should I leave the windws as it is or format it again?