when i try i gets the errors in cmd

C:\Windows\System32>python -m pip install --upgrade pip
Python was not found; run without arguments to install from the Microsoft Store, or disable this shortcut from Settings > Manage App Execution Aliases.

C:\Windows\System32>pip install --upgrade meson ninja
Fatal error in launcher: Unable to create process using '"C:\Python311\python.exe" "C:\Python311\Scripts\pip.exe" install --upgrade meson ninja': The system cannot find the file specified.