How to Uninstall Oracle Database 19c on Windows

To uninstall Oracle database on Windows, we have to delete the all the related Ora* registry keys, files and folders manually.

P.S Tested with Oracle database 19c on Windows 10

I can’t find any uninstaller to uninstall the Oracle database automatically?

1. Stop Oracle* services

Press Windows key, type services, stop all Oracle related services.

Oracle services

2. Delete Oracle* registry keys

Press Windows key, type regedit, delete the following Windows registry keys if it exists. :


Oracle registry keys

2.2 HKEY_LOCAL_MACHINE/SOFTWARE/Wow6432Node/Oracle* (64-bits Windows)

Oracle registry keys

2.3 HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services/Oracle*

Oracle registry keys

Reboot Windows.

3. Delete Oracle* folders.

Delete the following Oracle* folders and files if it exists.

  • C:\Oracle or ORACLE_BASE
  • C:\Program Files\Oracle
  • C:\Program Files (x86)\Oracle
  • C:\ProgramData\Microsoft\Windows\Start Menu\Programs\ Oracle-related folders.
  • C:\Users Oracle-related folders.

Empty C:\temp and recycle bin.

Done. The Oracle database is uninstalled from the Windows completely.


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Andrei Baidauz
Andrei Baidauz

Thank you for this post!!! Oracle Database is a big SHIT and absolutely NOT user friendly!!!

Pal Jim
Pal Jim

This is a very useful guide, thanks for sharing this. There is also the deinstall command ( however you might still need to delete some entries from the registry. Just one concern though : I don’t think it’s a good idea to just delete every Ora* file, especially if you have more oracle products installed, like e.g. a standalone db client. In any case, it might be better to highlight the need to backup the registry before deleting all these files. It might be a non-brainer standard practice for most users, but I am sure some less experienced devs will… Read more »