When I run Visual Studio 2012 Professional I get a side by side configuration error message.
Message:
\"C:\\Program Files\\Microsoft Visual Studio 11.
I had the same issue in that several files were not copied over to the VS2012 directories and it caused the 'side by side' issues. In my case I was installing from a drive that was on the network. After installing / uninstalling / reinstalling over and over without success I finally moved the install media to my local hard drive. Then, I was able to uninstall and then reinstall successfully. I believe the problem is that when the install has to reboot and continue installing it can't find the install media 'in time' so then it fails. If you are installing from a 'remote drive' I would suggest moving the install media to a local drive and then trying again.