I suspect my client's SharePoint site is 'corrupt'. Some links give "File not found" for example when going to a certain sub site's settings. They have SharePoint 2016 with SQL 2014 on Windows 2012 R2.
I want to backup the broken SharePoint's databases and restore them on a 'clean' SharePoint installation (also SP 2016 with SQL 2014).
I've read up on methods and saw there are different methods. Which one will be best in this scenario - and which databases do I backup? Is there a link maybe with step by step instructions to backup all SP databases and restore them on another installation of SP?