OK just for your info ...
According to their site all lenovo machines ship from the factory with the following partitions to the hard drive installed
C: system drive containing windows 30GB
Hidden EISA recovery disk 18-20GB
D: Drive - data drive Remaining Space on the drive
this would be displayed in the disk manager as Disk0
Your screen shot shows this except that the d: drive has been further partitioned into D:, E:, F:, G:, & H: Drives.
It does not show
any indication of an external drive
The full command set for the diskpart Command Line utility is
Here
The specific instructions for deleting an EISA partition is
Here Deleting the EISA partition will remove your ability to perform a OneKey system restore.
hope this clarifies what I read your Screen shot to be indicating, all the best