I'm a little unsure what to do in this situation. When I try to create a new simple volume from the unallocated space I get an error because I already have 4 partitions. I have no option to extend either my C:\ primary partition or the E:\ logical drive.

C:\ - Gaming Win7 install.

D:\ - Storage

Unallocated Space - Would somehow like to install OSX on a partition from this space.

E:\ - Software Development Win7 install.

I:\ - Ignore this. It's an external 1TB HDD.

Do I have any options that do not involve formatting / losing information on either C:\ or E:\?

Thank you.

Link to visual disk partitioning setup image.

Edit:

A bit more information regarding partitions. Firstly, the image linked above is a screenshot of Windows 7 partitioning tool, easier to read than text I guess!

H:\ System Reserved: 100MB NTFS

C:\ 244 GB NTFS Healthy (Page File, Primary Partition)

D:\ 294 GB NTFS Healthy (Primary Partition)

E:\ 100 GB NTFS Healthy (Boot, Page File, Crash Dump, Logical Drive)

Unallocated 292 GB

Hope this helps :)