It isn't really a competent Clean Reinstall
if you leave random partitions in place without regard to what they contain or if they're needed or desirable.
This topic is covered in the blue link tutorial to help you decide which partitions to keep during a reinstall. If you have made your Recovery Partition disks and/or don't plan to ever restore the factory image then it can be deleted. If any OEM partition does not contain bootable Diagnostics and they do not run from boot as intended, you can delete all other OEM partitions.
If you'll post back a screenshot of Disk Management - Post a Screen Capture Image - Windows 7 Forums
then we can help you delete the unwanted Windows 7 and other partitions and recover the space - something which is much easier done during install using the Custom install Drive Options shown in Steps 6/7 here