SQL Server 2014 installation Reporting Services Catalog error

Hi,

ERROR: Reporting Services Catalog Database File Existence or  Reporting Services Catalog Temporary Database File Existence.

Cause : Earlier installed SQL instance leaves the reporting service files which are all in *.mdf file format stops to recreate.

Solution : Needs to delete those files which are all present in the below mentioned location.

'C:\Program Files\Microsoft SQL Server\MSSQL12.MSSQLSERVER\MSSQL\DATA'

that needs to be repeated for all the 3 folders which I highlighted in trail images.

 
 Regards,