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Manual Oracle Uninstall

A number of people have contacted me regarding problems uninstalling Oracle products. The two methods listed below should only be used as a last resort and will remove *all* Oracle software allowing a re-install. If you make any mistakes they can be quite destructive so be careful.


In the past I've had many problems uninstalling all Oracle products from Windows systems. Here's my last resort method:

At this point your machine will be as clean of Oracle components as it can be without a complete OS reinstall.

Remember, manually editing your registry can be very destructive and force an OS reinstall so only do it as a last resort.

If some DLLs can't be deleted, try renaming them, the after a reboot delete them.


Uninstalling all products from UNIX is a lot more consistent. If you do need to resort to a manual uninstall you should do something like:

Hope this helps. Regards Tim...

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