While attaching AdventureWorksDWDenali_Data.mdf to SQL Server 2012 RC0 if you get this error:
To fix Right Click --> Properties --> Security
Give Full Control access to the account you would be using.
Attach to database again.
Unable to open the physical file "C:\Data\AdventureWorksDWDenali_Data.mdf". Operating system error 5: "5(Access is denied.)".
Give Full Control access to the account you would be using.
Attach to database again.
