SQL Server September CTP reloaded

In addition to my previous post about installing CTP, here are some additional notes: 

1. 
   
   After you uninstall the previous version of SQL Server, make sure to delete all database files in C:\Program Files\Microsoft SQL Server\MSSQL\Data. The setup program will comlain about them.


2. 
   
   If you are upgrading a previous CTP and you are running into performance issues, try the Registry Mechanic. It found 500 registry issues on my machines and it fixed an issue with the ASPNET account not having enough permissions (I don’t have the exact event log entry).