Question : Delete Reporting Services Instances

When installing Reporting Services, I get the error message below. This is after uninstalling the entire SQL server in order to correct a problem. How do I delete this instance? I want to make it as if SQL Server 2005 was never on this machine so I can do a fresh install.

TITLE: Microsoft SQL Server 2005 Setup
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An instance with the same name is already installed on this computer. To proceed with SQL Server Setup, provide a unique instance name.

For help, click: http://go.microsoft.com/fwlink?LinkID=20476&ProdName=Microsoft+SQL+Server&ProdVer=9.00.1399.06&EvtSrc=setup.rll&EvtID=28086&EvtType=sqlca%5csqlcax.cpp%40DetectInstanceClash%40ValidateInstanceName%40x6db6

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Answer : Delete Reporting Services Instances

Start with Microsoft's supported method for manually removing a SQL instance, see if it covers any area that for some reason did not get cleaned properly...

http://support.microsoft.com/?kbid=909967