安裝SQL SERVER 2008提示MICORSOFT .NET FRAMEWORK錯誤

System.Configuration.ConfigurationErrorsException: 創建 userSettings/Microsoft.SqlServer.Configuration.LandingPage.Properties.Settings 的配置節處理程序時出錯: 未能加載文件或程序集“System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089”或它的某一個依賴項。系統沒找到指定的文件。 (C:\Users\hp\AppData\Local\Microsoft_Corporation\LandingPage.exe_StrongName_ryspccglaxmt4nhllj5z3thycltsvyyx\10.0.0.0\useronfig line 5) ---> System.IO.FileNotFoundException: 未能加載文件或程序集“System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089”或它的某一個依賴項。系統沒找到指定的文件。
文件名:“System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089”
在 System.Configuration.TypeUtil.GetTypeWithReflectionPermission(IInternalConfigHost host, String typeString, Boolean throwOnError)
在 System.Configuration.RuntimeConfigurationRecord.RuntimeConfigurationFactory.Init(RuntimeConfigurationRecord configRecord, FactoryRecord factoryRecord)
在 System.Configuration.RuntimeConfigurationRecord.RuntimeConfigurationFactory.InitWithRestrictedPermissions(RuntimeConfigurationRecord configRecord, FactoryRecord factoryRecord)
在 System.Configuration.RuntimeConfigurationRecord.RuntimeConfigurationFactory.tor(RuntimeConfigurationRecord configRecord, FactoryRecord factoryRecord)
在 System.Configuration.RuntimeConfigurationRecord.CreateSectionFactory(FactoryRecord factoryRecord)
在 System.Configuration.BaseConfigurationRecord.FindAndEnsureFactoryRecord(String configKey, Boolean& isRootDeclaredHere)

WINSERVER 2008 下解決辦法：刪除