No Install Log for .NET Framework 3.5 installation (Error 0x80070002)

1. Run installation for .NET 3.5 (3.0 and .0 included)
2. Get error code 0x80070002
3. Found the error blog Net Framework 3.5 and 4.0 error 0x80070002 (https://social.msdn.microsoft.com/Forums/en-US/b3175c1d-1eae-414d-91c5-93bfbeba7bb7/net-framework-35-and-45-error-0x80070002?forum=netfxsetup), and its resolution Troubleshooting .NET Framework 4 Install failures, (https://blogs.msdn.microsoft.com/varungupta/2010/06/22/troubleshooting-net-framework-4-install-failures/) but I can't find an installation log. There is a log in my Temp folder that has the "correct" name ("Microsoft .NET Framework 4 Setup..."), but it is from six months ago and is an "installation success" for .NET 4.0.30319.
4. Also attempted to enable from Control Panel > Programs > Enable Windows Features (https://support.microsoft.com/en-us/kb/2785188). Continued to receive error code 0x80070002 and no install log.
   
5. Ran the Microsoft .NET Framework Repair Tool
   1. Kept dialogue box open, re-ran the .NET 3.5 install
   2. Received following message:

The Tool is unable to resolve the installation issue on your computer.

The following logs will be sent to Microsoft for further analysis

 C:\WINDOWS\windowsupdate.log

 C:\WINDOWS\logs\cbs\cbs.log

 C:\Users\JONATH~1\AppData\Local\Temp\FixDotNet.log

 C:\Users\JONATH~1\AppData\Local\Temp\NetFxSetupEvents.txt

 C:\Users\JONATH~1\AppData\Local\Temp\dd_dotNetFx40_Client_x86_x64_decompression_log.txt

 C:\Users\JONATH~1\AppData\Local\Temp\dd_NetFxRepairTool_decompression_log.txt

 C:\Users\JONATH~1\AppData\Local\Temp\dd_vcredist_amd64_20160110131431.log

 C:\Users\JONATH~1\AppData\Local\Temp\dd_vcredist_amd64_20160110213737.log

 C:\Users\JONATH~1\AppData\Local\Temp\dd_vcredist_amd64_20160110213737_0_vcRuntimeMinimum_x64.log

 C:\Users\JONATH~1\AppData\Local\Temp\dd_vcredist_amd64_20160110213737_1_vcRuntimeAdditional_x64.log

 C:\Users\JONATH~1\AppData\Local\Temp\dd_vcredist_amd64_20160110213749.log

 C:\Users\JONATH~1\AppData\Local\Temp\dd_vcredist_amd64_20160117202926.log

 C:\Users\JONATH~1\AppData\Local\Temp\dd_vcredist_amd64_20160123001216.log

 C:\Users\JONATH~1\AppData\Local\Temp\dd_vcredist_amd64_20160125184444.log

 C:\Users\JONATH~1\AppData\Local\Temp\dd_vcredist_amd64_20160206112956.log

 C:\Users\JONATH~1\AppData\Local\Temp\dd_vcredist_amd64_20160405210945.log

 C:\Users\JONATH~1\AppData\Local\Temp\dd_vcredist_amd64_20160405210945_0_vcRuntimeMinimum_x64.log

 C:\Users\JONATH~1\AppData\Local\Temp\dd_vcredist_amd64_20160405210945_1_vcRuntimeAdditional_x64.log

 C:\Users\JONATH~1\AppData\Local\Temp\dd_vcredist_x86_20160110213729.log

 C:\Users\JONATH~1\AppData\Local\Temp\dd_vcredist_x86_20160110213729_0_vcRuntimeMinimum_x86.log

 C:\Users\JONATH~1\AppData\Local\Temp\dd_vcredist_x86_20160110213729_1_vcRuntimeAdditional_x86.log

 C:\Users\JONATH~1\AppData\Local\Temp\dd_vcredist_x86_20160110213736.log

 C:\Users\JONATH~1\AppData\Local\Temp\dd_vcredist_x86_20160405210912.log

 C:\Users\JONATH~1\AppData\Local\Temp\dd_vcredist_x86_20160405210912_0_vcRuntimeMinimum_x86.log

 C:\Users\JONATH~1\AppData\Local\Temp\dd_vcredist_x86_20160405210912_1_vcRuntimeAdditional_x86.log

 C:\Users\JONATH~1\AppData\Local\Temp\dd_vcredist_x86_20160405210949.log

 C:\Users\JONATH~1\AppData\Local\Temp\dd_vcredist_x86_20160405210949_0_vcRuntimeMinimum_x86.log

 C:\Users\JONATH~1\AppData\Local\Temp\dd_vcredist_x86_20160405210949_1_vcRuntimeAdditional_x86.log

 C:\Users\JONATH~1\AppData\Local\Temp\Microsoft Visual C++ 2010 x86 Redistributable Setup_20160211_181442228-MSI_vc_red.msi.txt

 C:\Users\JONATH~1\AppData\Local\Temp\Microsoft .NET Framework 4 Client Profile Setup_20160319_091930087.html

 C:\Users\JONATH~1\AppData\Local\Temp\Microsoft Visual C++ 2010 x86 Redistributable Setup_20160211_181442228.html

 C:\Users\JONATH~1\AppData\Local\Temp\FixDotNet_HKCR_Installer.regdump

 C:\Users\JONATH~1\AppData\Local\Temp\FixDotNet_HKLM_Installer.regdump

 To close the tool, choose Finish

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I've spent at least an hour trying to resolve this--what am I doing wrong?