It's is quite difficult to change the default Codepage of Windows console. When you search the web you find different proposals, however some of them may break your Windows entirely, i.e. your PC does not boot anymore.
The most secure solution is this one:
Go to your Registry key HKEY_CURRENT_USER\Software\Microsoft\Command Processor and add String value Autorun = chcp 65001.
Or you can use this small Batch-Script for the most common code pages.
@ECHO off
SET ROOT_KEY="HKEY_CURRENT_USER"
FOR /f "skip=2 tokens=3" %%i in ('reg query HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Nls\CodePage /v OEMCP') do set OEMCP=%%i
ECHO System default values:
ECHO.
ECHO ...............................................
ECHO Select Codepage
ECHO ...............................................
ECHO.
ECHO 1 - CP1252
ECHO 2 - UTF-8
ECHO 3 - CP850
ECHO 4 - ISO-8859-1
ECHO 5 - ISO-8859-15
ECHO 6 - US-ASCII
ECHO.
ECHO 9 - Reset to System Default (CP%OEMCP%)
ECHO 0 - EXIT
ECHO.
SET /P CP="Select a Codepage: "
if %CP%==1 (
echo Set default Codepage to CP1252
reg add "%ROOT_KEY%\Software\Microsoft\Command Processor" /v Autorun /t REG_SZ /d "@chcp 1252>nul" /f
) else if %CP%==2 (
echo Set default Codepage to UTF-8
reg add "%ROOT_KEY%\Software\Microsoft\Command Processor" /v Autorun /t REG_SZ /d "@chcp 65001>nul" /f
) else if %CP%==3 (
echo Set default Codepage to CP850
reg add "%ROOT_KEY%\Software\Microsoft\Command Processor" /v Autorun /t REG_SZ /d "@chcp 850>nul" /f
) else if %CP%==4 (
echo Set default Codepage to ISO-8859-1
add "%ROOT_KEY%\Software\Microsoft\Command Processor" /v Autorun /t REG_SZ /d "@chcp 28591>nul" /f
) else if %CP%==5 (
echo Set default Codepage to ISO-8859-15
add "%ROOT_KEY%\Software\Microsoft\Command Processor" /v Autorun /t REG_SZ /d "@chcp 28605>nul" /f
) else if %CP%==6 (
echo Set default Codepage to ASCII
add "%ROOT_KEY%\Software\Microsoft\Command Processor" /v Autorun /t REG_SZ /d "@chcp 20127>nul" /f
) else if %CP%==9 (
echo Reset Codepage to System Default
reg delete "%ROOT_KEY%\Software\Microsoft\Command Processor" /v AutoRun /f
) else if %CP%==0 (
echo Bye
) else (
echo Invalid choice
pause
)
Using @chcp 65001>nul instead of chcp 65001 suppresses the output "Active code page: 65001" you would get every time you start a new command line windows.
A full list of all available number you can get from Code Page Identifiers
Note, the settings will apply only for the current user. If you like to set it for all users, replace line SET ROOT_KEY="HKEY_CURRENT_USER" by SET ROOT_KEY="HKEY_LOCAL_MACHINE"