Let's clean and thoroughly uninstall Oracle

Let us clean and thoroughly uninstall Oracle is divided into three steps 1. uninstall the main program 2. deletion of residual files 3. registry cleanup 1. to uninstall the main program, you only need to run Oracle OraDB11g_home1 --> Oracle Installation Product --> Universal Installerd. After the program runs, choose to uninstall the product and go to the following page, as shown in the following figure, if you have installed the Client, select the client folder. Then we will wait for the first step to complete after the progress is completed. 2. unmount the residual files on the hard board. Oracle will install it on your system disk and the main program installation disk you selected during installation. Take my system as an example, Oracle will install it on my C and G disks respectively. C: \ Program Files (x86) \ Oracle and G: \ app folders and Their subfiles are all deleted. Some file programs are in use and cannot be deleted. Let's take care of them later. By now, most of the remaining files have been deleted. 3. Delete the Registry. Enter regedit in start --> Search to open the Registry Editor and delete all files with "Oracle" in all the services folders shown above. Restart the computer and delete the residual files that are not deleted in step 2. Oracle has been permanently deleted from your computer.