It's not logical name.

What I mean is the physical file name.

Thanks a lot. The information you provided is very helpful.

I was desparated, and ended up searching all the sql server registry key and removed them.

Then did another install, it works...

Thank you.

I see there is a key folder called legacy_report server, which include the devicedesc subkey with value something like ms sql reporting service mssqlserver. This key cannot be deleted.

Is...

That sounds very complicated.

Is there a registry key I can remove for report server that stores the instance name?