We had a problem when re-building one of our client access / hub transport machines from scratch. The Exchange installation would not proceed as the machine existed before with the same hostname.
To solve this we used the ADSI Edit snap-in in an MMC and:
To solve this we used the ADSI Edit snap-in in an MMC and:
- Right-clicked ADSI Edit and chose ‘Connect To’, then change the Naming Context to ‘Configuration’ and click ‘OK’.
- Expand ADSI Edit > Configuration > CN=Configuration > Services > Microsoft Exchange > Information Services > Administrative Groups > Exchange Administrative Groups > Servers
- Delete the server you are re-building by right-clicking and choosing delete
- Re-try the Exchange 2007 installation by double-clicking the setup.exe file again
