Windows
Before starting the installation process, check the System Requirements for the prerequisites for installing LibreOffice on a Windows system.
Enterprise & Government Users: Please check this page for deployment and migration information.
You do not have to de-install any previously-installed version of LibreOffice. If you do have an existing installation of LibreOffice, all your preferences will be preserved and that old installation will simply be overwritten.
1. Download the LibreOffice installer.
Save the installer to a directory of your choosing. Your desktop is a perfectly-acceptable place, for example. Browse to the chosen directory, and double-click on the installer. A welcome dialog box opens, telling you that the installation process is about to be started.
Click on “Next”.
2. Enter your name and your organization. You will see a dialog box inviting you to enter your name and organization. It is entirely optional. Fill-in your name if you wish, or leave it blank. You can also choose whether all users on your computer should have access to this LibreOffice installation (this is the default choice). Make a choice.
When ready, press “Next”.
3. Choose the kind of installation you want:
Another dialog box opens to give you a choice as to whether you want a default installation, or whether you want to choose special locations and components. If you want a default installation, just press “Next”. If you want to make special choices, click on “Custom” and then press “Next”.
4.If you want a custom installation you may now choose your components.
Components can be modules, additonal filters, but also language packs. In fac that's the point, you can choose the language packs you want to be installed. English and the language of your operating system are selected by default. Also, all dictionaries are selected by default. You may want to select only those which you actually need. You can also deselect unwanted extensions. Make your selections, and press “Next”.
5. Tell LibreOffice if you want it to open Microsoft Office documents by default. 
Another dialog box opens, inviting you to choose whether to open Microsoft Office documents with LibreOffice. By default, this feature is not enabled. If you want use LibreOffice to open Microsoft Office documents in future, put a checkmark in all three checkboxes.
6. Create a shortcut on your desktop and you're ready to go
Another dialog box opens, asking you whether a shortcut to open LibreOffice should be placed on your desktop. The default option is to create a shortcut. Make a choice and then press “Install”.
7. LibreOffice is installing:
When the installation process has completed, a final dialog box opens to inform you that LibreOffice is now installed. Press “Finish”.
8. LibreOffice is ready!
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