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If you select “Install Now”: 

• You will not need to be an administrator (unless a system update for the C Runtime Library is required or you install the Python Launcher for Windows for all users) 

• Python will be installed into your user directory 

• The Python Launcher for Windows will be installed according to the option at the bottom of the first page 

• The standard library, test suite, launcher and pip will be installed 

• If selected, the install directory will be added to your PATH 

• Shortcuts will only be visible for the current user 

Selecting “Customize installation” will allow you to select the features to install, the installation location and other options or post-install actions. To install debugging symbols or binaries, you will need to use this option. 

To perform an all-users installation, you should select “Customize installation”. In this case: 

• You may be required to provide administrative credentials or approval 

• Python will be installed into the Program Files directory 

• The Python Launcher for Windows will be installed into the Windows directory 

• Optional features may be selected during installation 

• The standard library can be pre-compiled to bytecode 

• If selected, the install directory will be added to the system PATH 

• Shortcuts are available for all users 

