SQL Server Create File operating system error 5 Access Denied

Create File encounters OS error 5 Access Denied
When you create a database on SQL Server 2008, the following error occurs:
When you try to open or create a physical file 'd: \ studb_data.mdf ', Create File encounters an operating system error 5 (Access denied.

The causes and solutions are as follows:

This is because the SQL server startup account (generally a system or an operating system administrator) has no permission to create files in the root directory of the E disk. Right-click the Elastic Block Storage, and view the permissions of the user on the "Security" tab in properties. Check who the startup account is, run services. msc, find the SQL Server service in the Service Manager, view the "Logon" tab, select a local user, and restart the service.

That is, LocalSystem