How to Fully Uninstall DRDC:

1. Uninstall DRDC

2. in SQL, delete the DRDC SQL Database

3. in SQL, go to "System Databases" > "Master" > "Tables". Delete "dbo.InstallShield"

4. in SQL, go to "Server Objects" > "Linked Servers". Delete "local"

*Note: might want to double check that the ".mdf" and ".ldf" for DRDC Database is deleted. Location is where the DRDC database file is stored