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Unistalling Oracle i was installing Oracle on my laptop but i cancelled unknowingly so i wanted to unistall it, but its not there in control panel and it seems to b in regestry, how can i do it

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At first use the supplied Oracle uninstallation utility (Oracle Universal Installer or OUI) (which may or may not do some or all of the following):

  • Stop any Oracle services that have been left running.
    Start->Settings->Control Panel->Services
    Look for any services with names starting with 'Oracle' and stop them.

  • Run regedit and delete the following keys (some may have slightly different names in your registry):

    Note that the services control panel will still show the old services until you reboot.

  • Delete the Oracle home directory

  • Delete the Oracle Program Files directory:
    C:\Program Files\Oracle

  • Delete the Oracle Start Menu shortcuts directory:
    C:\Documents and Settings\All Users\Start Menu\Programs\Oracle*
    Where * indicates the name of your install. Look for and remove all Oracle directories from that location.

  • Remove Oracle refereces from the path. To edit your path go to:
    Start->Settings->Control Panel->System->Advanced->Environment Variables
    Edit both of the environment variables user PATH and system PATH. Remove any Oracle references in them.

  • Remove Oracle.DataAccess and any Polic.Oracle files from the GAC which is at:

  • There, now your system is Oracle free. If you are installing a new instance of Oracle (and not just an additional DB) I recommend you do this before any new Oracle installation.

    Posted on Apr 21, 2010

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    1 of the way is try to properly install the Oracle again, and then uninstall it after the installation done. Another way is u can try to use the cleaner software like CCleaner to clean up all the unwanted register key installed previously.

    YBC (/\)

    Posted on Sep 11, 2009

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    You will need to re install it and then uninstall it for cleaning it completely, but it will still shows information in registry as long as registry does not deletes it after few months.

    You can also manually delete it from your program file folders.

    Posted on Sep 11, 2009

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