Can't uninstall SQL Server 2012, Probable registry corruption ???


  • On attempts to uninstall Sql Server 2012, I'm getting an installer initialization error of:

    Exception type: System.Collections.Generic.KeyNotFoundException
            The given key was not present in the dictionary.

    Can't figure out how to fix this... I'd like to re-install/fix but I'm stuck.

    the full log is:

    Overall summary:
      Final result:                  Failed: see details below
      Exit code (Decimal):           -2146232969
      Exit facility code:            19
      Exit error code:               5495
      Exit message:                  The given key was not present in the dictionary.
      Start time:                    2014-04-11 15:37:17
      End time:                      2014-04-11 15:38:14
      Requested action:              RunRules
      Exception help link: 

    Machine Properties:
      Machine name:                  PC-KKRASNOWSKY
      Machine processor count:       8
      OS version:                    Windows 7
      OS service pack:               Service Pack 1
      OS region:                     United States
      OS language:                   English (United States)
      OS architecture:               x64
      Process architecture:          64 Bit
      OS clustered:                  No

    Product features discovered:
      Product              Instance             Instance ID                    Feature                                  Language             Edition              Version         Clustered 
      SQL Server 2012      MSSQLSERVER          MSSQL11.MSSQLSERVER            Database Engine Services                 1033                 Standard Edition     11.1.3000.0     No        
      SQL Server 2012                                                          Management Tools - Basic                 1033                 Standard Edition     11.1.3000.0     No        
      SQL Server 2012                                                          Management Tools - Complete              1033                 Standard Edition     11.1.3000.0     No        
      SQL Server 2012                                                          LocalDB                                  1033                 Express Edition      11.1.3000.0     No        

    Package properties:
      Description:                   Microsoft SQL Server 2012 Service Pack 1
      ProductName:                   SQL Server 2012
      Type:                          RTM
      Version:                       11
      SPLevel:                       0
      Installation edition:          Evaluation

    User Input Settings:
      ACTION:                        RunRules
      ENU:                           true
      HELP:                          false
      INDICATEPROGRESS:              false
      INSTANCENAME:                  <empty>
      PID:                           *****
      QUIET:                         false
      QUIETSIMPLE:                   false
      RULES:                         GlobalRules
      UIMODE:                        Normal
      X86:                           false

      Configuration file:            C:\Program Files\Microsoft SQL Server\110\Setup Bootstrap\Log\20140411_153706\ConfigurationFile.ini

    Rules with failures:

    Global rules:

    There are no scenario-specific rules.

    Rules report file:               The rule result report file is not available.

    Exception summary:
    The following is an exception stack listing the exceptions in outermost to innermost order
    Inner exceptions are being indented

    Exception type: System.Collections.Generic.KeyNotFoundException
            The given key was not present in the dictionary.
        HResult : 0x80131577
          HelpLink.EvtType = 0xA0A72FEE@0xD05BC945
          DisableWatson = true
            at System.ThrowHelper.ThrowKeyNotFoundException()
            at System.Collections.Generic.Dictionary`2.get_Item(TKey key)
            at Microsoft.SqlServer.Configuration.UIExtension.RegistrationService.GetRegistrationInfo[T](String moniker)
            at Microsoft.SqlServer.Configuration.UIExtension.UserInterfaceFactoryService.Create(String moniker, Predicate`1 pageFilter)
            at Microsoft.SqlServer.Configuration.UIExtension.UserInterfaceService.Start(String moniker, Predicate`1 pageFilter)
            at Microsoft.SqlServer.Configuration.UIExtension.StartAction.ExecuteAction(String actionId)
            at Microsoft.SqlServer.Chainer.Infrastructure.Action.Execute(String actionId, TextWriter errorStream)
            at Microsoft.SqlServer.Setup.Chainer.Workflow.ActionInvocation.ExecuteActionHelper(TextWriter statusStream, ISequencedAction actionToRun, ServiceContainer context)

    Any help would be greatly appreciated.

    Friday, April 11, 2014 10:54 PM


  • Hello,

    Please perform the following steps to manually uninstall SQL Server 2012:

    1. Uninstall all SQL Server 2012 components you can using Control Panel -> Programs and Features

    2. Backup the registry.

    3. Delete the following keys in regedit:

        --HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server


    4. Go to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall and delete all the sub-keys referencing SQL Server.

    5. Go to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services and delete all the keys referencing SQL Server.

    6. Rename all the SQL Server folders in the computer like

    C:\Program Files\Microsoft SQL Server and subfolders.

     Hope this helps.


    Alberto Morillo

    Friday, April 11, 2014 11:34 PM