backup 2014& sql 2012

hi

I had sql 2008 and I deleted    Then I installed sql 2012

then

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 Location
Error: Failed registry read on server:MSSQLSERVER.
Operation to change location of Backup Exec database to SQL Server instance SYMANTEC-TW ended with errors.