Recently I uninstalled Oracle 11g from machine and below are the steps to uninstall the Oracle 11g in any environment. Go to the below location and run the setup file as Administrator - app-product-11.2.0-dbhome_1-oui-bin-setup Un-install Oracle 11g Un-install Oracle 11g Un-install Oracle 11g In the last go to regedit and search for Oracle directory and delete it and finally hit for restart.
