Actually you have three primary partitions there.
So, as Shawn said, you have option for ONE more further partition, not more than that. Posting it, lest it becomes useful to you in future.
- C: 97.56 GB
- D: 368.10 GB
- System Reserved: 100 MB (Hidden, created by the installation procedure itself).
If you install Windows 8 only, you will do a Clean Install - Windows 8
In step 8, you will delete C and System reserved, will create a single new partition in the free space, and will let the installer to continue at its own. It will make the other necessary partitions (System Reserved and if needed then the MSR partition).
I run with 50GB, no problems here.System partition? Will 80GB be ok?
Why didn't you answer my queries in the other thread on this Nisha ?? pretty annoying mate. :sarc: