Parllels 10 - Yosemite - Win 8.1 - Doesn't see second internal HD

Hi,

Parallels 10 is install on an Imac 27" with a SSD 256 GB (Boot Drive). OS and Apps including Parallels are installed there.
The computer has a second internal drive, a 2 TB HD.

Parallels doesn't see it.

Also, and that may be related, Parallels creates a virtual [C] Windows 8.1 drive that I can open in OS X but in which I can't put anything because I don't have the permission. My regular Mac password (admin) doesn't work there.

The [C] Windows 8.1 shortcut doesn't work within Windows either. Windows says that it can't find it (it was moved or else) and offers to fix it (which doesn't work) or delete it.

Thanks for your help,

Marc