Go to the Start Orb and in the command line type "cmd" then right-click on the selection above and choose to "Run as administrator".
Do the following in the "cmd" window with administrator privileges:
Use the diskpart utility in an elevated command prompt window. The commands will look something like this:
C:\Users\yourname> diskpart
DISKPART> select disk 0
DISKPART> create partition extended
DISKPART> create partition logical
For help on a command, type its name in the help command. For example:
DISKPART> help create partition
DISKPART> help create partition logical
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Then type exit, it make take two times to exit to get completely out of the "cmd" window.