I’ve try it with Oracle version 8 and above.
- Uninstall Oracle with Universal Installer.
- After finish, Restart your computer and pres F8 to go to Save Mode.
- Delete Oracle Folder Directory.
- Go to Regedit (type regedit in Run window) and find HKEY_LOCAL_MACHINE -> SOFTWARE -> ORACLE. Delete ORACLE.
- Still in regedit, find HKEY_LOCAL_MACHINE -> SYSTEM -> CurrentControlSet -> Services -> And delete your Oracle service (It can be your Oracle Listener or your Oracle Service).
Done.
Tags: Uninstall oracle, oracle
Sunday morning 
Thanks!
Thanks for sharing nice information.
Version 8 is a too old build . It ‘s difficult to install it on modern OS now.
I think you should tell us the OS is windows 2000 or 2003
I’m using Win XP SP3
Very nice.. Can you tell me more on this?
I have already done this. I have want to ask you Which one OUI i can used for uninstalled?
After installed oracle is created one oracle in that one OUI >bin>setup file. So this one i can use for Uninstalled?
When i am trying to install a Oracle 10 g again. it’s coping in two drive. In one drive it’es showing oracle data which are store.
N second drive store database. Is this possible? or some thing wrong in this?
My friend has window 7 64-bit. So lower bit version ora10g 32-bit. Does not installed? or it does?
Should i Installed RAC on my PC. Ora 10g already installed in my PC. We can keep both RAC and Ora10g? Or not?
This is active?