The system is delivered as a Windows Installer executable. Get it from http://www.erlang.org/download.html
The installation procedure is automated. Double-click the
Start Erlang/OTP by double-clicking on the Erlang shortcut icon on the desktop.
Expect a command-line window to pop up with an output looking something like this:
Erlang/OTP 17 [erts-6.0] [64-bit] [smp:2:2] Eshell V6.0 (abort with ^G) 1>
Exit by entering the command
2> halt().
This closes the Erlang/OTP shell.