Error in Sql Server Insatllation

Question

unhandled exception has occured in your application . if u click continue the application will ignore and attempt to continue.
an error occurred creating the configuration section handler for usersettings/microsoft.sqlserver.configuration.landingpage.properties.Settings:could not load file or assembly System,version=4.0.0.0 culture=neutral,public key token=????????????
See the end of this message for details on invoking 
just-in-time (JIT) debugging instead of this dialog box.
************** Exception Text **************
System.Configuration.ConfigurationErrorsException: An error occurred creating the configuration section handler for userSettings/Microsoft.SqlServer.Configuration.LandingPage.Properties.Settings: Could not load file or assembly 'System, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=b77a5c561934e089' or one of its dependencies. The system cannot find the file specified. (C:\Users\smart\AppData\Local\Microsoft_Corporation\LandingPage.exe_StrongName_ryspccglaxmt4nhllj5z3thycltsvyyx\10.0.0.0\user.config line 5) ---> System.IO.FileNotFoundException:
Could not load file or assembly 'System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' or one of its dependencies. The system cannot find the file specified.
File name: 'System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'
   at System.Configuration.TypeUtil.GetTypeWithReflectionPermission(IInternalConfigHost host, String typeString, Boolean throwOnError)
   at System.Configuration.RuntimeConfigurationRecord.RuntimeConfigurationFactory.Init(RuntimeConfigurationRecord configRecord, FactoryRecord factoryRecord)
   at System.Configuration.RuntimeConfigurationRecord.RuntimeConfigurationFactory.InitWithRestrictedPermissions(RuntimeConfigurationRecord configRecord, FactoryRecord factoryRecord)
   at System.Configuration.RuntimeConfigurationRecord.RuntimeConfigurationFactory..ctor(RuntimeConfigurationRecord configRecord, FactoryRecord factoryRecord)
   at System.Configuration.RuntimeConfigurationRecord.CreateSectionFactory(FactoryRecord factoryRecord)
   at System.Configuration.BaseConfigurationRecord.FindAndEnsureFactoryRecord(String configKey, Boolean& isRootDeclaredHere)
WRN: Assembly binding logging is turned OFF.
To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1.
Note: There is some performance penalty associated with assembly bind failure logging.
To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog].
   --- End of inner exception stack trace ---
   at System.Configuration.BaseConfigurationRecord.FindAndEnsureFactoryRecord(String configKey, Boolean& isRootDeclaredHere)
   at System.Configuration.BaseConfigurationRecord.GetSectionRecursive(String configKey, Boolean getLkg, Boolean checkPermission, Boolean getRuntimeObject, Boolean requestIsHere, Object& result, Object& resultRuntimeObject)
   at System.Configuration.BaseConfigurationRecord.GetSection(String configKey, Boolean getLkg, Boolean checkPermission)
   at System.Configuration.BaseConfigurationRecord.GetSection(String configKey)
   at System.Configuration.ClientConfigurationSystem.System.Configuration.Internal.IInternalConfigSystem.GetSection(String sectionName)
   at System.Configuration.ConfigurationManager.GetSection(String sectionName)
   at System.Configuration.ClientSettingsStore.ReadSettings(String sectionName, Boolean isUserScoped)
   at System.Configuration.LocalFileSettingsProvider.GetPropertyValues(SettingsContext context, SettingsPropertyCollection properties)
   at System.Configuration.SettingsBase.GetPropertiesFromProvider(SettingsProvider provider)
   at System.Configuration.SettingsBase.GetPropertyValueByName(String propertyName)
   at System.Configuration.SettingsBase.get_Item(String propertyName)
   at System.Configuration.ApplicationSettingsBase.GetPropertyValue(String propertyName)
   at System.Configuration.ApplicationSettingsBase.get_Item(String propertyName)
   at Microsoft.SqlServer.Configuration.LandingPage.Properties.Settings.get_WindowPlacement()
   at Microsoft.SqlServer.Configuration.LandingPage.LandingPageForm.OnLoad(EventArgs e)
   at System.Windows.Forms.Form.OnCreateControl()
   at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
   at System.Windows.Forms.Control.CreateControl()
   at System.Windows.Forms.Control.WmShowWindow(Message& m)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
   at System.Windows.Forms.ContainerControl.WndProc(Message& m)
   at System.Windows.Forms.Form.WmShowWindow(Message& m)
   at System.Windows.Forms.Form.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
************** Loaded Assemblies **************
mscorlib
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.8009 (FX35W81RTMGDR.050727-8000)
    CodeBase: file:///C:/Windows/Microsoft.NET/Framework/v2.0.50727/mscorlib.dll
LandingPage
    Assembly Version: 10.0.0.0
    Win32 Version: 10.0.1600.22 ((SQL_PreRelease).080709-1414 )
    CodeBase: file:///C:/Program%20Files/Microsoft%20SQL%20Server/100/Setup%20Bootstrap/Release/x86/LandingPage.exe
System.Windows.Forms
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.8008 (FX35W81RTMGDR.050727-8000)
    CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Windows.Forms/2.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
System
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.8009 (FX35W81RTMGDR.050727-8000)
    CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll
System.Drawing
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.8007 (FX35W81RTMGDR.050727-8000)
    CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Drawing/2.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
Microsoft.SqlServer.Configuration.Sco
    Assembly Version: 10.0.0.0
    Win32 Version: 10.0.1600.22 ((SQL_PreRelease).080709-1414 )
    CodeBase: file:///C:/Program%20Files/Microsoft%20SQL%20Server/100/Setup%20Bootstrap/Release/x86/Microsoft.SqlServer.Configuration.Sco.DLL
Microsoft.SqlServer.Chainer.Infrastructure
    Assembly Version: 10.0.0.0
    Win32 Version: 10.0.1600.22 ((SQL_PreRelease).080709-1414 )
    CodeBase: file:///C:/Program%20Files/Microsoft%20SQL%20Server/100/Setup%20Bootstrap/Release/x86/Microsoft.SqlServer.Chainer.Infrastructure.DLL
System.Xml
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.8009 (FX35W81RTMGDR.050727-8000)
    CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Xml/2.0.0.0__b77a5c561934e089/System.Xml.dll
Accessibility
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.8007 (FX35W81RTMGDR.050727-8000)
    CodeBase: file:///C:/Windows/assembly/GAC_MSIL/Accessibility/2.0.0.0__b03f5f7f11d50a3a/Accessibility.dll
Microsoft.SqlServer.Management.Controls
    Assembly Version: 10.0.0.0
    Win32 Version: 10.0.1600.22 ((SQL_PreRelease).080709-1414 )
    CodeBase: file:///C:/Program%20Files/Microsoft%20SQL%20Server/100/Setup%20Bootstrap/Release/x86/Microsoft.SqlServer.Management.Controls.DLL
System.Configuration
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.8007 (FX35W81RTMGDR.050727-8000)
    CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Configuration/2.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
************** JIT Debugging **************
To enable just-in-time (JIT) debugging, the .config file for this
application or computer (machine.config) must have the
jitDebugging value set in the system.windows.forms section.
The application must also be compiled with debugging
enabled.
For example:
<configuration>
    <system.windows.forms jitDebugging="true" />
</configuration>
When JIT debugging is enabled, any unhandled exception
will be sent to the JIT debugger registered on the computer
rather than be handled by this dialog box.

Answer 1

Hello,
Please delete the following folder.
C:\Users\[user id]\AppData\Local\Microsoft Corporation.
Or run the following command on the C drive using the Command Prompt
rd /s /q %localappdata%\Microsoft_Corporation
Hope this helps.
Regards,
Alberto Morillo
SQLCoffee.com