I...ran MalwareBytes Anti-Malware and ADWCleaner which cleaned out some entries and folders as needed. I also reset WU [but the following updates still failed to install]
2894854
2931368
2972107
2972216
2979578
2898869
2901126 [SOURCE]
Is KB3037581 (May 2015), KB2894854 (December 2013), KB2931368 (May 2014), KB2972107 (October 2014), KB2972216 (September 2014), KB2979578 (October 2014), KB2898869 (February 2014), and/or KB2901126 (February 2014) listed in
Installed Updates (not Update History)?
Can you tell us why .NET Framework v4.5, .NET Framework v4.5.1, and/or .NET Framework v4.5.2 was installed to begin with?