CREATE FILE encountered operating system error 5(failed to retrieve text for this error. Reason: 15105)

Question

I have a database file .mdf from MS SQL EXPRESS in folder:

C:\\Program Files\\Microsoft SQL Server\\MSSQL10.SQLEXPRESS\\MSSQL\\DATA

Answer 1

The key is "operating system error 5". Microsoft helpfully list the various error codes and values on their site

https://msdn.microsoft.com/en-us/library/windows/desktop/ms681382(v=vs.85).aspx

ERROR_ACCESS_DENIED 5 (0x5) Access is denied.