任何人曾经得到这个错误和/或有什么想法就可以了的原因和/或解决方案？

Anybody ever get this error and/or have any idea on it's cause and/or solution?

我代表一个朋友问这个，但有在的 http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=125227&SiteID=1

I'm asking this on behalf of a friend but there is info at http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=125227&SiteID=1

更新

连接字符串是= SQLEX $ P $干燥综合征; AttachDbFilename = C： TEMP HelloWorldTest.mdf;集成安全性=真

The connection string is "=.SQLEXPRESS;AttachDbFilename=C:tempHelloWorldTest.mdf;Integrated Security=True"

我提出的用户实例=假。这为他工作。

I suggested the "User Instance=false". That works for him.

推荐答案

下面是回答你的问题：

很多时候，老用户的实例创建一些prevent一个新的SQL防爆preSS用户实例被创建的临时文件。当这些文件被删除一切开始正常工作。

Very often old user instance creates some temp files that prevent a new SQL Express user instance to be created. When those files are deleted everything start working properly.

首先确认用户实例运行在SQL Server Management Studio中的下列SQL启用：

First of all confirm that user instances are enabled by running the following SQL in SQL Server Management Studio:

exec sp_configure 'user instances enabled', 1.
GO
Reconfigure

运行查询，重新启动您的SQL Server实例之后。现在，删除以下文件夹：

After running the query restart your SQL Server instance. Now delete the following folder:

C： Documents和Settings {YOUR_USERNAME} 本地设置应用数据微软 Microsoft SQL Server数据 {SQL_INSTANCE_NAME}

请确保您替换 {YOUR_USERNAME} 和 {SQL_INSTANCE_NAME} 用合适的名字。

Make sure that you replace {YOUR_USERNAME} and {SQL_INSTANCE_NAME} with the appropriate names.

来源：Fix错误由于启动进程的用户实例失败导致无法生成SQL Server的用户实例。