Option 1: Change your default code page of Windows console to UTF-8 (Windows 10)
Start -> Run -> regedit
Go to [HKEY_LOCAL_MACHINE\Software\Microsoft\Command Processor\Autorun]
Change the value to chcp 65001
Option 2: Use this batch file (Other Win Versions(2012 Server))
@ECHO OFF
REM change CHCP to UTF-8
CHCP 65001
CLS
Option 3: (if 1 or 2 didnt work)
1) System's Language settings
2) Select Administrative language settings
3) Change system locale
4) Check the Beta: Use Unicode UTF-8 for worldwide language support box
5) Restart PC.
Option 4: Use a server manager that has its own cmd prompt
Here
or
Here