oracle June 12, 2019 by mkyong 11 comments

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

Note
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.

2. Delete Oracle* registry keys

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

2.1 HKEY_LOCAL_MACHINE/SOFTWARE/Oracle*

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

2.3 HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services/Oracle*

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.

References

Manual Oracle Uninstall

Written by mkyong

Software Engineer • Writer • Dad

20+ years hands-on, writing about Java, Spring, and AI. Every code example here is tested.

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11 comments on “How to Uninstall Oracle Database 19c on Windows”

Samyak
February 10, 2023 at 6:02 pm

After rebooting my windows laptop, it got crashed🥲 , pls help me to restore everything back.

Reply
Tripple Hope Watemu
November 9, 2021 at 1:31 pm

Best tutorial i have ever meet on uninstalling oracle

Reply
Mohammed
October 14, 2021 at 6:11 pm

thanks man!!

Reply
Ricardo
January 28, 2021 at 2:43 am

Yo tuve que borrar C:\Windows\ServiceProfiles\Oracle*

Saludos.

Reply
1. Ricardo
  January 28, 2021 at 3:10 am
  
  Again delete all oracle local groups. From windows 10, into cmd as administrator, run “net local group”.
  
  This list all local groups, then execute a “net localgroup <ORACLE_****> /delete” for each oracle local group listed.
  
  Saludos!
  
  Reply
Eman
January 4, 2021 at 2:46 am

Excellent walk through my friend! One to rule them all. I enjoyed your instructions very much and laughed at this part:
“Empty C:\temp and recycle bin.
Done. The Oracle database is uninstalled from the Windows completely.”
—Seems like, now beat the horse again. Make sure it’s dead.

Reply
Kay
December 4, 2020 at 1:41 am

Thanks for the post it really helped me after several days of trying to uninstall. Can you please suggest any database that is better and user friendly than oracle?

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Pal Jim
November 8, 2019 at 7:01 pm

This is a very useful guide, thanks for sharing this.

There is also the deinstall command (https://docs.oracle.com/en/database/oracle/oracle-database/19/cwlin/oracle-deinstallation-tool-deinstall.htm) 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 use this guide and end up editing their registry without knowing there is no warning, no ‘undo’ option, no automatic backups.

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Andrei Baidauz
September 15, 2019 at 9:31 am

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

Reply
1. arturo
  May 26, 2020 at 10:28 am
  
  jajajaja bro me dio mucha risa lo siento XD
  
  Reply
2. Ricardo
  January 28, 2021 at 2:46 am
  
  Try MS Access, that should work better for you.
  
  Reply