1，卸载2008后安装的2008 r2，运行安装程序就弹出“创建userSettings/Microsoft.SqlServer.Configuration.LandingPage.Properties.Settings”的错误。

解决办法：

删除文件：

C:\Users\username\Local Settings\Application Data\Microsoft_Corporation\LandingPage.exe_StrongName_ryspccglaxmt4nhllj5z3thycltsvyyx\10.0.0.0\user.config

win7系统目录是：

C:\Users\username\AppData\Local\Microsoft_Corporation\LandingPage.exe_StrongName_ryspccglaxmt4nhllj5z3thycltsvyyx\10.0.0.0\user.config

 

2，SQL Server 2008 R2安装过程中提示"Could not open key:unknown\components\7abfe44842c12b390af18... verify that you have sufficient access to that key or contact your support personnel."

解决方法：

以管理员身份运行CMD命令提示符，输入以下语句并运行就OK了

secedit /configure /cfg %windir%\inf\defltbase.inf /db defltbase.sdb /verbose