- What flavor of Linux are you running?
- Can you take a screenshot of either the Linux or Windows partition displays? We might be able to help identify a few for you.
Typically you'll get at least 4 new partitions created on a disk when you install Linux, a /boot, / (root), swap, and /home. Some flavours of linux (like CentOS/ Fedora) have these set up as logical volume groups so they look like /dev/mapper/cpuname-root.
So you have AT LEAST 2 partitions that Windows uses (a primary and backup), and normally at lest 4 Linux partitions.
If you want to poke around inside partitions within Linux you'll need to mount the partition to a valid mountpoint (ex. mount /dev/partitionname /mnt/point). From there you can browse through them in either your GUI file manager or the command line using 'cd'.