Summarize:

This is a free program, which brings back the Start button on Windows 8.  Take care not to click any other “download” buttons, which can install unwanted programs on your computer.    ” Wait for the installation to complete. ”  ” You can now browse through the familiar layout of programs and settings.
Go to Classic Shell at Classicshell.net. Click the “Download Now” button. See that the download has started automatically. Click “Run” when prompted. Accept the license agreement. Choose from various features, like Classic IE9, Classic Start menu and Classic Explorer. Click “Install. Click “Finish. Notice the new approximation to the old Microsoft Start logo. Click on “Start” and choose “Basic settings” or “All settings.