SEE Hyperlink in bottom of screen .. bottoms middle left

\sources\sxs

https://technet.microsoft.com/en-us/library/dn482071.aspxhttps://technet.microsoft.com/en-us/library/hh831809.aspxhttp://www.danielclasson.com/install-net-framework-35-server-2012/C:\Users\muhammad.imr\Downloads\Windows Server 2012 Std_and_DataCtrR2_2012_64Bit\sources

http://blogs.technet.com/b/askpfeplat/archive/2014/09/29/attempting-to-install-net-framework-3-5-on-windows-server-2012-r2-fails-with-error-code-0x800f0906-or-the-source-files-could-not-be-downloaded-even-when-supplying-source.aspxUpdate for the .NET Framework 3.5 on Windows 8, Windows 8.1, Windows Server 2012, and Windows Server 2012 R2https://support.microsoft.com/en-us/kb/3005628Download information

The following files are available for download from the Microsoft Download Center. For all supported x86-based systemsDownloadDownload the NDPFixit-KB3005628-X86.exe package now.For all supported x64-based systemsDownloadDownload the NDPFixit-KB3005628-X64.exe package now.

Customers who are aware that the DISM "/StartComponentCleanup" and "/ResetBase" option was used on their system should download and install the following update:For all supported x86-based systemsDownloadDownload the Windows8.1-KB2966828-x86.msu package now.For all supported x64-based systemsDownloadDownload the Windows8.1-KB2966828-x64.msu package now.

Microsoft .NET Framework 3.5 Deployment Considerationshttps://technet.microsoft.com/en-us/library/dn482066.aspx

AFTER PREV RED STEPS AGAIN PERFORM THE ADD FEATURES STEP WITH SXS IN PATH TOO -- IMRInstead of prev screenshot where path was ending at SOURCES.,,, correct is to end path at SXS -- IMRC:\Users\muhammad.imr\Downloads\Windows Server 2012 Std_and_DataCtrR2_2012_64Bit\sources\sxs