I was all excited when I found out that you could try out Windows Server 2012 R2 Preview for a free 30 day trial on Windows Azure. So I proceeded to instantiate a virtual machine and also to attempt to install SharePoint 2013 Foundation. It didn’t go so well. The main problem is that you can’t install the SharePoint 2013 Prerequisites using the standard install wizard, since it doesn’t recognize Windows Server 2012 R2 Preview as a valid supported OS. It displays an error: “ There was an error during installation. This tool does not support the current operating system”: I did finally get it to work, but it was not trivial at all. First of all, you have to install the prerequisites semi-manually. Then, you need to make sure that permissions are set properly on certain files and directories so that the SharePoint Configuration Wizard can successfully complete. But dear friends, I am here to walk you through the process step by...