Article #27966: Steps to uninstall and reinstall Delphi 6
Problem
Delphi 6 isn't working correctly and has been messed up from the initial installation. Running the Delphi 6 Repair from the installation CD didn't fix the problems so now a full reinstall seems to be necessary.
Solution
1. Go into the control panel and select Add/Remove Programs.
2. Select Remove Delphi 6. Proceed with the Uninstall.
3. Open up Windows Explorer. Navigate to the directory where Delphi 6 was installed. If you have projects that are saved in the Delphi6\Projects directory, move them to a different location outside of the Delphi6 folder. Delete the Delphi6 folder and all its sub-directories.
4. In Windows, click on Start and select Run. Type in: regedit
5. Navigate to HKEY_LOCAL_MACHINE\Software\Borland\Delphi
If you see a 6.0 folder, select it and hit Delete.
6. Close regedit and reboot the machine. Ensure the user account that Delphi 6 will be installed on has administrative rights, as this is necessary to install Delphi.
7. Stop all background process that are running on the machine. This also means stop/disable any anti virus program that is running.
8. Place the Delphi 6 CD in the CD-ROM drive and install Delphi 6. Before installing the Delphi 6 Update or any third party components, start Delphi 6 and ensure it is working correctly.