Intel does not offer any option in BIOS to control hard drive partitions. You will need to install third party partitioning software or use Windows management options.
For all it's prettiness and apparent functionality, it's actually reduced functionality and increased complexity. I think the experiment has failed - give me an old text screen any day
Still, perhaps a rethink on the whole experiment will have it organizing peripherals a lot easier and creating and formatting partitions in future.