Fails to Install on Windows 10
Running Windows 10 and Office 2016. When I execute the setup.exe file I get the following error dialog, "The following Microsoft Office solution cannot be installed due to a general installer error: OfficeSocialShare.vsto"
Error code presented: 0x8007007E
I hope this helps you resolve the issue. Feel free to email or reply if you need/want more information.
Om Krishna commented
For the above error please install Visual Studio 2010 Tools for Office Runtime from https://www.microsoft.com/en-us/download/details.aspx?id=48217 and then install Social Share add-on . We have also mentioned this on the FAQ page.