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I get Error 1639 when attempting to install SQL Server 2012 Reporting Services. My research, conclusion, and question about a resolution are all outlined below. Thank you in advance for your help.


Reason for failure: An error occurred during the setup process of the feature. Next Step: Use the following information to resolve the error, and then try the setup process again. Component name: SQL Server Reporting Services Component error code: 1639

I successfully installed sql svr 2012 reporting services successfully installed on this machine in May. I tried removing it last week with some errors, but I thought I was successful. Now, however, I get the aforementioned error. All other features and services install to the same box w/o error.

A look at the installation log reveals: * Product: C:\SQLSVR2012 iso files\x64\setup\sql_rs.msi * Action: * CommandLine: **** MSI (s) (90:50) [12:25:40:082]: Machine policy value 'TransformsSecure' is 0 MSI (s) (90:50) [12:25:40:082]: User policy value 'TransformsAtSource' is 0 MMSI (s) (90:50) [12:25:40:136]: Machine policy value 'DisableUserInstalls' is 0 MSI (s) (90:50) [12:25:40:136]: Specified instance {DCCB1789-1DA0-4E3A-A52F-7815B602CC98} via transform :InstID01.mst;:InstName01.mst is already installed. MSINEWINSTANCE requires a new instance that is not installed.

That log entry led me to check for this Instance in the registry and compare it to other registry keys, for example the adjacent SQL Server 2012 Database Engine Services key.


It seems all features/services except the Reporting Services were successfully uninstalled then re-installed as the InstallDate key as been updated for everything else (all features/services) except for Reporting Services.


So then, my question simply is how do I safely remove the key for the Reporting Services installation entry? Is it simply a matter of removing all references to that key and attempting to add features back to SQL Svr 2012 though the normal re-installation process? There are 3 such references that I found when searching the registry:

Components - HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Components\E2D8041188B416A4BA3DC8F76D0F4E0B

Products - HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\9871BCCD0AD1A3E45AF287516B20CC89

Uninstall - HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall{DCCB1789-1DA0-4E3A-A52F-7815B602CC98}

Thank you in advance for the help.

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