Не работает PyInstaller (При установке PyInstaller не создаётся исполняемый файл)

pip install pyinstaller

C:\Windows\system32>pip uninstall pyinstaller
Found existing installation: pyinstaller 5.3
Uninstalling pyinstaller-5.3:
  Would remove:
    c:\program files\python39\lib\site-packages\pyinstaller-5.3.dist-info\*
    c:\program files\python39\lib\site-packages\pyinstaller\*
    c:\program files\python39\scripts\pyi-archive_viewer.exe
    c:\program files\python39\scripts\pyi-bindepend.exe
    c:\program files\python39\scripts\pyi-grab_version.exe
    c:\program files\python39\scripts\pyi-makespec.exe
    c:\program files\python39\scripts\pyi-set_version.exe
    c:\program files\python39\scripts\pyinstaller.exe
Proceed (Y/n)? y
  Successfully uninstalled pyinstaller-5.3
 
C:\Windows\system32>pip install pyinstaller
Collecting pyinstaller
  Using cached pyinstaller-5.3-py3-none-win_amd64.whl (1.2 MB)
Requirement already satisfied: setuptools in c:\program files\python39\lib\site-packages (from pyinstaller) (58.1.0)
Requirement already satisfied: altgraph in c:\program files\python39\lib\site-packages (from pyinstaller) (0.17.2)
Requirement already satisfied: pyinstaller-hooks-contrib>=2021.4 in c:\program files\python39\lib\site-packages (from pyinstaller) (2022.8)
Requirement already satisfied: pywin32-ctypes>=0.2.0 in c:\program files\python39\lib\site-packages (from pyinstaller) (0.2.0)
Requirement already satisfied: pefile>=2022.5.30 in c:\program files\python39\lib\site-packages (from pyinstaller) (2022.5.30)
Requirement already satisfied: future in c:\program files\python39\lib\site-packages (from pefile>=2022.5.30->pyinstaller) (0.18.2)
Installing collected packages: pyinstaller
Successfully installed pyinstaller-5.3
 
C:\Windows\system32>pyinstaller
"pyinstaller" не является внутренней или внешней
командой, исполняемой программой или пакетным файлом.
 
C:\Windows\system32>