Quote from ESRL Forum: Joel Brown on Dev Team post:
"We should have the links up and ready for download by Sunday evening. A handful of guys are doing some final testing plus we need to make sure all our servers are in place and ready to get slammed.
Installation Instructions:
Using SCE2013 ModManager - IMPORTANT: When starting SCE2013 ModManager Right Click and select Run As Administrator.
1) Download SCE2013 ModManager. You have the option to install it over top of your existing SCE2012 ModManager. Think about what you want to do before deciding on this, Upgrade or Fresh Install of SCE. Your league may not be ready for SCE2013 when you are.
2) If you decide to Upgrade SCE2012, start SCE2013 ModManager. The first thing you MUST do is change the rFactor folder to point to your SCE2012 installation. If you don't do this then it won't perform an upgrade. By default it will create a new installation.
3) Click on the FullInstall tab and do a normal FullInstallation. SCE2013 ModManager will see the SCE2012 installation and perform an upgrade, plus clean out any old files, such as SCE2012 Cup skins and obsolete tracks.
4) You will have the option to install from a Primary or Secondary server. You can cancel at anytime and select the other server. It will pickup where it left off.
5) Expect it to take anywhere from 30 minutes to several hours depending on your connection speed and server load.
6) Once it's completed click on Start SCE and configure your graphics card. If you see an error about MSVCRT_100.dll then you will need to click on the download link for vcredist_x86.exe and run it. There have been problems reported of upgrading from SCE2013 Beta 3.
Using SCE2013FullInstall.exe
1) Download the file and run it. This is only for new installations and will not install properly over top of SCE2012."