Win下手工卸载Oracle Database 19c

How to Uninstall Oracle Database 19c on Windows
By mkyong | June 12, 2019 | Viewed : 4,227 | +1,278 pv/w

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.

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