Sql server SQL Server Express安装失败

Sql server SQL Server Express安装失败,sql-server,failed-installation,Sql Server,Failed Installation,我在安装Microsoft SQL Server 2012 Express或2008 R2 Express时遇到问题 安装开始,我选择“New installation…”,进入步骤,选择应安装的内容,然后继续执行步骤,指定实例名称,但当我在步骤中单击next时,会出现一个错误弹出窗口,显示: SQL Server Setup has encountered the following: Could not find the file. Error code 0x84BB0001 然后它说

我在安装Microsoft SQL Server 2012 Express或2008 R2 Express时遇到问题

安装开始,我选择“New installation…”,进入步骤,选择应安装的内容,然后继续执行步骤,指定实例名称,但当我在步骤中单击next时,会出现一个错误弹出窗口,显示:

SQL Server Setup has encountered the following:

Could not find the file.

Error code 0x84BB0001
然后它说安装崩溃了

我以前曾安装过2008 R2 Express,但不得不重新安装

现在我猜是有文件遗留在某处,所以我运行Windows Installer Cleanup Utility来删除任何与SQL Server相关的内容,但它仍然不起作用

我能做些什么来解决这个问题?我们真的在寻找解决方案

编辑,从堆栈前的日志复制:

2012-09-20 12:07:00 SQLBrowser: CalculateUserNamePassword: SQL Server Browser service exists: retrieving current service account.
2012-09-20 12:07:00 Slp: Sco: Attempting to get start account for service SQLBrowser
2012-09-20 12:07:00 Slp: Invoking QueryServiceConfig Win32 API for buffer size
2012-09-20 12:07:00 Slp: Error: Action "Microsoft.SqlServer.Configuration.UIExtension.WaypointAction" threw an exception during execution.
2012-09-20 12:07:00 Slp: Microsoft.SqlServer.Setup.Chainer.Workflow.ActionExecutionException: Thread was being aborted. ---> System.Threading.ThreadAbortException: Thread was being aborted.

您以前安装过SQL Server。安装已正确卸载,但留下了数据库。不幸的是,SQL Server 2008 R2(SP2)和SQL Server 2012不支持对该数据进行安装,如果以前的安装版本比当前版本更新,这一点尤其明显,在这种情况下,无法降级数据库架构版本

在磁盘上找到.mdf/.ldf文件并删除整个数据文件夹