Cannot open backup device. Operating System error 5

Question

Below is the query that I am using to backup (create a .bak) my database.

However, whenever I run it, I always get this error message:

Answer 1

I face the same problem with SQL Express 2014 SP1 on Windows 10.

Solution which work

1. Open Service by typing Services
2. Locate and open the SQL Server (SQLExpress)
3. Go to the LogOn Tab
4. Choose Local System Account ( Also Check for Allow Services to interact with desktop )
5. Click OK . Stop the service . Restart the service.
6. Problem solved