
I found that using browser download is much more reliable. And sadly, there is no direct download link so we can download Revit contents separately. I find this quite annoying, even after downloading a huge installer we still need to download the content. Depends on your internet connection speed and the contents you selected, it can take hours to complete the installation. The reason is the installer downloads the Revit contents when you run the installer. You may also find that the library folder is empty or not complete.

When you try to install Revit 2015, you may find it takes a very long time when it gets to Revit content libraries. Copy/share the content from other computer.

If you need to add/reinstall the contents.
