Problem phenomenon
When installing SharePoint SP1, prompting for the. NET Framework 4.5, obviously the prerequisites are over, and Windows Server 2012R2 is the default installation of the. NET Framework 4.5.
Cause of the problem
The reason is that the system has been updated through Windows Update to the. NET Framework version 4.6, and the installation program for SharePoint SP1 is particularly silly and does not recognize that a KB is found on the official website:
SharePoint Setup Error if the. NET Framework 4.6 is installed https://support.microsoft.com/en-us/kb/3087184
Download the. NET Clean tool as described in KB, clear the installed. NET Framework 4.6, and then restart.
is not effective ...
Forget it, manually remove all updates about the. NET Framework 4.6 and restart.
Work out.
This article from "Zeng Hung Xin Technical column" blog, declined to reprint!
Tips:sharepoint installation prompt requires the. Net Framework 4.5