SharePoint will not sync with new OneDrive client

Issue: After upgrading to Office 2016 via Office 365 or after upgrading to Windows 10, the user loses access to their SharePoint library synced through OneDrive For Business. You will also need to follow this guide to sync a new SharePoint library via the new OneDrive client (not OneDrive for Business)

Cause: There are two different types of sync clients that Office365 uses. There is OneDrive for Business (old client) and OneDrive (new client). The new client is automatically installed when you upgrade to Windows 10 or if you upgrade to Office 2016 from 2013. The issue is caused by the new OneDrive client not being compatible with SharePoint 2013, which is the current version of SharePoint. 

Resolution: You will need to reinstall Microsoft Office 2016 using a configuration.xml file that will reinstall the OneDrive for Business client. This client will be installed stand-alone and can be used along-side the OneDrive client. To re-install Office 2016 with the correct sync client and configure the SharePoint library, follow the directions below:

1. Download Office2016withGroove.exe from this article. Unzip it to the C:\IT Support\Office directory by double-clicking on the exe.
2. Open the new directory run OFFICE_2016_INSTALL.cmd
3. Let the installer complete. It may take up to 15 minutes depending on the internet connection. 
4. Once completed, you will see a new OneDrive client in the system tray named OneDrive for Business. There may be a notification asking for credentials for this client. Have the user sign in if necessary. 
5. Navigate to your desired SharePoint site and click Sync in the top navbar. This should automatically add the directory to their OneDrive for Business library. If the user does not have permission to access that library, it will not sync.