I had sql 2008 and I deleted Then I installed sql 2012
1. Launch BEUtility from the Backup Exec directory
2.All Media Servers > right-click the media server name > select New Backup Exec Database Location.
3. Click " Yes" on The Remote Registry Service pop-up message if displayed.
After following the steps, the following error message appears
New Backup Exec Database LocationError: Failed registry read on server:MSSQLSERVER.Operation to change location of Backup Exec database to SQL Server instance SYMANTEC-TW ended with errors.