Here is step wise solution by @Aleksandar Vucetic on
StackOverflow[
^]
1. Start SQL Server Managament Studio
2. Expand Security->Logins
3. Locate your user, right click on it and take Properties
4. Open Server Roles tab
5. Make sure that bulkadmin is checked.
6. There you can experiment with other roles if bulkadmin doesn't work for you.
7. Click OK
Try this :)