Windows 10: Drive showing less space than actually available

My drive is 250GB, but only shows as 150GB. I know there is more as i have had it, just booting one day it vanishes. When I try to shrink what is left, i get invalid parameter error. Hope screenshots help with what I mean

:)

 

Storage Spaces Actual Available Space (Windows10)?

I am testing storage spaces in Windows 10 to store a large amount of data. I am currently testing with a mixture of drive sizes using parity. The available space reports the size of the pool which is not the actual available capacity. Is there any way
to query how much data I can actually write to the space before I will be told to add more disks? I am using 2x128GB, 1x250GB and 1x500GB with parity resilience. I would assume the available space would be something like three times the smallest disk because
I know one disk will be used for parity. Is there any way to get the actual available space with a powershell query or something else?

 

Help! Data partition not showing under my computer

This is happening on a windows 2000 server. Our second partition of the system, for data is not showing under my computer. Here are the properties of it in disk management:





Now under logical drives its listed as F and shows free space available.

Suggestions on how to fix this?

 

Anyway to show actual space from drives?

So, as you can see in the screen shot below, I have 3 map network drives. . The 2 i have questions about is Dropbox and OneDrive. I mapped networked them. Is there any possible way I could make them show exactly how much space I have left from those, instead of it giving me the space left from my actual hard drive?