A bat script to calc MD5 or SHA1/256 hash for Windows users. No additional requirements need.

md5-sha-hash.bat

@echo off
:: Display a simple logo
echo.
echo ================================
echo        Hash Calculator
echo ================================
echo.

:loop
:: Check if a file path is provided as an argument
if "%~1"=="" (
    set /p filePath="> Enter file path or drag file here: "
) else (
    set filePath="%~1"
)

:: Remove quotes for checking existence
set filePathNoQuotes=%filePath:"=%
if not exist %filePathNoQuotes% (
    echo File does not exist, please re-enter.
    goto loop
)

set /p choice="> Enter your choice 1. MD5, 2. SHA1, 3. SHA256(Default): "
:: Default to SHA256 if no input
if "%choice%"=="" (
    set choice=3
)
if "%choice%"=="1" (
    certutil -hashfile %filePathNoQuotes% MD5
) else if "%choice%"=="2" (
    certutil -hashfile %filePathNoQuotes% SHA1
) else if "%choice%"=="3" (
    certutil -hashfile %filePathNoQuotes% SHA256
) else (
    echo Invalid option, please select again.
)

echo.
goto loop

You can:

1. Run script and input path / drag file
2. Drag file to the script itself or its shortcut

If you only press enter without input anything when hash choices, it will default on SHA256.