Install `pipx` to the %LOCALAPPDATA%\Programs\Python\Launcher directory

install_pipx.bat

@echo off
setlocal EnableDelayedExpansion

set pipx_dir=!LOCALAPPDATA!\Programs\Python\Launcher

echo.
if not exist "!pipx_dir!\NUL" mkdir "!pipx_dir!" 2>nul
(echo.@echo off
 echo.if "%%1" == "-U" (
 echo.  setlocal enabledelayedexpansion
 echo.  echo.Fetching latest pipx tag from GitHub
 echo.  for /F "delims=: tokens=2" %%%%t in ('curl -s -L --get https^://api.github.com/repos/pypa/pipx/releases/latest ^^^| findstr tag_name'^) do set tag_name=%%%%t
 echo.  if "^!tag_name^!" == "" echo.Cannot get latest tag from GitHub, try again soon ^& goto^:eof
 echo.  set latest=^^!tag_name:~2,-2^^!
 echo.  curl -s -L https://github.com/pypa/pipx/releases/download/^^!latest^^!/pipx.pyz ^> "%%~dp0pipx.pyz"
 echo.  echo.Installed pipx v^^!latest^^!
 echo.^) else (
 echo.  py "%%~dp0pipx.pyz" %%*
 echo.^) 
) >"!pipx_dir!\pipx.bat"
setx PIPX_BIN_DIR "!pipx_dir!" 1>nul
setx PIPX_MAN_DIR "!LOCALAPPDATA!\pipx\pipx\man" 1>nul
call "!pipx_dir!\pipx.bat" -U
goto:eof