Down grading ss2012 Standard implementation and reinstalling ss2012 Developer Edition.
Installation keeps failing due to the SSISDB .mdf/.ldf files than rename in the same folder location from previous installation. Unable to delete or move these files although a local admin on the server. Throws error below when installing. Completes install however the SQL Engine and Reporting Services do not install.
Updating permission setting for file 'C:\Program Files\Microsoft SQL Server\MSSQL11.MSSQLSERVER\MSSQL\DATA\SSISDB.ldf failed
Backed up all DBs, saved Master Key, all best practice preparation steps for a down grade completed. Any ides?