During a fresh installation of a SharePoint 2016 farm I encountered this error, I was installing all the prerequisites, I rebooted the server when it demanded, but when I continued with the installation I faced the following error message:
Update for Microsoft .NET Framework to disable RC4 in Transport Layer Security (KB2898850): installation error
The error patch description is “A security issue has been identified that could allow an unauthenticated remote attacker to compromise your system and gain access to information”
So you can download the security patch from Microsoft Download Center through this URL http://www.microsoft.com/en-us/download/details.aspx?id=42883
Install by hand this update and try another time to check all the prerequisites in the SharePoint farm. After that I was able to continue with my new installation os SharePoint 2016.
Hope it helps!