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I know this thread has been posted several times online, but none of the solutions I've researched have been working for me.
I have been trying to install Microsoft .Net Framework 3.5 for a week to no avail. Some of the methods I've used include:
Turn Windows Features On/Off
DISM /Online /Enable-Feature /FeatureName:NetFx3 /All /LimitAccess /Source:installationMediaDrive:\sources\sxsin Administrative Command Prompt
Important to note is that I do have .Net Framework 4.6 installed from the Anniversary Update, so I don't know if that's interfering with the installation. I think my registry database is corrupted though. If anyone needs the dism log file, let me know and I'll send it. Any help is greatly appreciated.