How to permanently delete oracle in Windows

Implementation Method:

1. Choose "start"> "Settings"> "Control Panel"> "Administrative Tools"> "services" to stop all Oracle services.

2. Start-> Program-> Oracle-orahome81-> Oracle Installation products-> universal installer uninstalls all Oracle products, but the universal installer cannot be deleted.

3. Delete the D: \ oracle folder

4. Delete the c: \ Program Files \ oracle folder

5. Delete start-Oracle files in the program

6. Run regedit and delete the Oracle key under HKEY_LOCAL_MACHINE \ SOFTWARE \.

7. Run regedit to delete all Oracle headers in HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Services.

So far, you can still find that Oracle services exist in the service, and you must delete them, otherwise, when you install Oracle again, an error message indicating what services already exist is displayed !! These services start with legacy_oracle under HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Enum \ Root, and you will receive an error when you choose to delete by Delete !! You are not allowed to delete it !!! The specific deletion method is provided as follows:

Run regedt32. Note that it is not Regedit !!!! On the HKEY_LOCAL_MACHINE page, find HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Enum \ Root, first select root, and then click Security on the menu-add yourself to it, and set the permission to full control, after confirming, delete all legacy_oracle headers under the root account, in the same way, you can delete all legacy_oracle headers in \ Enum \ Root under HKEY_LOCAL_MACHINE \ SYSTEM \ controlset002 and HKEY_LOCAL_MACHINE \ SYSTEM \ controlset002. restart the computer to find that, none of them in the Service !!

In WINXP, it is relatively simple. Run regedit, find the legacy_oracle header key, right-click it, select permissions, and set everyone to full control to delete it! After deletion, restart it !!