Windows 10: My second partition is missing

So, I got a Pc from someone. I installed windows but I think I messed up somethink. I have 1T memory but I can see only half of it (only partition C. Where is the second one? I am sure I have two. I was not able to activate it in Disk Manager because it does not show up. Please help me.
P.S.: I have no idea how to check if my partition in in my bios.




:)

 

missing partition

I have missing partition second partition my windows is 10 I tried to resize my partitions using some soft wares I didn't complete the action cancel and close but after I was surprising d:\ is missing . I try to recover by using everyway recovery soft
wares and disk part prumpt and mange drives in system . restoring points tell me c is ok d is missing . in disk part prompt list partition is appear like recovery but volume list disappeared . attached with computer manage result. thanks for your help

 

W7 Hard drive partition issue

to get rid of that 100 meg windows partition that setup creates for you on a new install on a blank hdd:

- press shift+f10 when on the partition management screen in setup <-- this opens a command prompt
- diskpart <-- start the windows command line partition management tool
- list disk <--- list the installed hdds in this computer for the next step
- select disk 0 <- might have to replace 0 with the number of the correct disk
- clean <-- this will erase all data on the disk you selected one step up- dont use the wrong disk!
- create partition primary <- creates a primary partition taking up all space on the drive, adjust the command if necessary
- exit, exit to exit diskpart and the command prompt
- click refresh in partition manager and select your newly created partition and install to that

 

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?