SSRS 2008 report error

User does not have required permissions. Verify that sufficient permissions have been granted and Windows User Account Control (UAC) restrictions have been addressed.

1. Start Internet Explorer as Administrator (Run as Administrator)
2. Open url http://<Server name>/Reports this will take you to the “SQL Server Reporting Services” Home page
3. Click on the “Folder Settings” button.
4. Click on the “New Role Assignment” button.
5. Add the Group or user name: DOMAIN\USER_NAME, and permissions you have logged in as.
6. Click on Ok button.