Volume size and partition size inconsistency

Win2008R2 x64 (I think it's quite compatible to Win 7). I'm trying to resize my disk C: to the whole partition , but when I run Disk Management (via run as admin) , it shows me the following weird picture:

When I call "Shrink volume" command from the local menu, it hangs for about 1 minute and then shows this msgbox:


CHKDSK and SFC found nothing. What I'm doing wrong? And how to have this issue fixed?

Welcome to the forum can you post a disk manager screenshot so we can see if you posted a photo it's not showing

Ok, here're the img links
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and

http://prntscr.com/g2861g

open an elevated command prompt and start DISKPART List all volumes of the pc.
DISKPART> list volume
Select the volume that has the wrong file system size. x is the ID of the effected volume.
DISKPART> select volume [x]
Extend the file system
DISKPART> extend filesystem