It won't overwrite your existing Office programs UNLESS YOU ARE INSTALLING OFFICE 365 PROPLUS. If you have Office 2007, 2010, or 2013, you can install and use Skype for Business 2016.

Install Skype for Business with Office 2007, 2010, or 2013 If you have an MSI installation of Visio 2013, uninstall Visio and follow the steps in Installing Visio Pro for Office 365. If you did a click-to-run installation of Visio 2013, follow the steps in Installing Visio Pro for Office 365. These installs only show an About button. MSI-based installations don't have an Update Options button. For Visio click-to-run installations, you'll have an Update Options button.To check for updates, follow these steps: The steps to upgrade from Visio depends if the installation is click-to-run or MSI-based. If you're the admin, see Manage user software in Office 365. Your admin may not have assigned a license to you or given you permission to install the version of Office you want. If you don't see an option to install Visio when you sign into /ols/mySoftware.aspx, contact your admin. Install Visio by following the steps in Install Visio Pro for Office 365.Uninstall Visio by following the steps in Uninstall Office 2013, Office 2016, or Office 365 from a PC.If you're the admin, see Manage user software in Office 365: Your admin may not have assigned a licensed to you or given you permission to install the version of Office you want. Upgrading from an earlier version of Visio, such as Visio Professional 2010 or Visio Professional 2007.Your admin or IT department will likely continue to manage your installations and updates. In this way, there's nothing for you to do. Your Office 365 admin or IT department installed Visio Pro for Office 365 for you.There are 3 ways to upgrade or update Visio Pro: Upgrade Visio Pro for Office 365 (PC only) Install Skype for Business with Office 2007, 2010, or 2013.Upgrade Visio Pro for Office 365 (PC only).

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