Setup.rll error when installing SQL Server 2012

Error when trying to run setup.exe for SQL Server 2012:

"C:\Program Files\Microsoft SQL Server\110\Setup Bootstrap\SQLServer2012\resources\1033\setup.rll is either not designed to run on Windows or it contains an error. Try installing the program again using the original installation media or contact your system administrator or the software vendor for support."

To fix, copy the following:

%InstallMedia%\resources\1033\setup.rll

to:

C:\Program Files\Microsoft SQL Server\110\Setup Bootstrap\SQLServer2012\Resources\1033

.NET Unhandled Exception error when running installing SQL Server 2012

Error when launching setup.exe for SQL Server 2012:

"Unhandled exception has occurred in your application.  If you click Continue, the application will ignore this error and attempt to continue.  If you click Quit, the application will close immediately."

This was resolved by deleting the following folder:

C:\Users\%username%\appdata\local\Microsoft_Corporation