There is no option to format a drive or partition inside of Windows so that you could install OS X 10.9. The Mac uses a completely different file system (Mac OS Extended (Journaled) which is also known as HFS+). There may be third party software you could install to format the partition as a Mac partition but I'm not sure. http://guides.macrumors.com/Formatting_an_External_Device - though this refers to external drives it applies to internal drives as well.
There is no option to format a drive or partition inside of Windows so that you could install OS X 10.9. The Mac uses a completely different file system (Mac OS Extended (Journaled) which is also known as HFS+). There may be third party software you could install to format the partition as a Mac partition but I'm not sure. http://guides.macrumors.com/Formatting_an_External_Device - though this refers to external drives it applies to internal drives as well.