"Operating system error 5 (Access denied)" occurs when the SQL Server database is backed up. BACKUP DATABASE is terminating abnormally. Error How should we solve the problem? Small knitting today for you to recommend a solution.
This error occurs when the selected directory for a generic backup file is a disk root or when the backup partition is not granted read and write permission to SQL Server users.
The workaround is to grant permissions to SQL Server users:
Select the folder you want to back up, right-click the--> property--> security--> See if the "group or user" includes the name authenticated users, because it is all authenticated accounts that are included on the computer or in the Active Directory. If you have the right to assign to read and write, if you do not click--> Edit--> Add--> advanced--> Find this user to add, and then assign permissions to it, (note: When you log on to the SQL Server server with Windows identity to assign permissions , add a "group or user name" If you are using a different login method
The above is the SQL Server database backup appears "operating system error 5" solution, I hope to help you learn.