You can always download the latest version at http://www.bitrixsoft.com/download/intranet/download_intranet.php#tab-local-link or http://www.bitrixsoft.com/download/sources.php. Choose the required installation version.
Run the downloaded file. The initial screen of the installation wizard will open.
The installation wizard will help you install the system taking as less time and efforts as
possible. It will:
- If required, download and install Bitrix Web Environment;
- Install Bitrix24.
Use the Next and Back buttons to navigate through the wizard steps. The Back button allows you to return to a previous step if you need to change the installation preferences. If you want to
abort the installation, click Cancel.