首先，如果以前安装的话，要删除干净。我也找了半天的网络资料。1.把原来SQLServer的安装目录 C:\Program Files\Microsoft SQL Server  删除2.所有SQLServer相关的注册表全部删除，保证系统是没有装过SQLServer的状态注册表打开方式：开始-->运行-->regedit然后找下面目录删除  1).hkey_current_user\software\miocrosoft\MICROSOFT   SQL   SERVER 文件夹删除  2).hkey_current_user\software\miocrosoft\mssqlserver  文件夹删除  3).HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server  文件夹删除总之一句话，把所有SqlServer相关的删除。然后重启机器开始装。  [img]http://files.jb51.net/file_images/article/201407/2014072817405015.png[/img] [img]http://files.jb51.net/file_images/article/201407/2014072817405016.png[/img] [img]http://files.jb51.net/file_images/article/201407/2014072817405017.png[/img] [img]http://files.jb51.net/file_images/article/201407/2014072817405018.png[/img] [img]http://files.jb51.net/file_images/article/201407/2014072817405019.png[/img] [img]http://files.jb51.net/file_images/article/201407/2014072817405020.png[/img] [img]http://files.jb51.net/file_images/article/201407/2014072817405021.png[/img] [img]http://files.jb51.net/file_images/article/201407/2014072817405022.png[/img] [img]http://files.jb51.net/file_images/article/201407/2014072817405023.png[/img] [img]http://files.jb51.net/file_images/article/201407/2014072817405024.png[/img] [img]http://files.jb51.net/file_images/article/201407/2014072817405025.png[/img] [img]http://files.jb51.net/file_images/article/201407/2014072817405026.png[/img] [img]http://files.jb51.net/file_images/article/201407/2014072817405027.png[/img] [img]http://files.jb51.net/file_images/article/201407/2014072817405028.png[/img] [img]http://files.jb51.net/file_images/article/201407/2014072817405029.png[/img] [img]http://files.jb51.net/file_images/article/201407/2014072817405030.png[/img] [img]http://files.jb51.net/file_images/article/201407/2014072817405031.png[/img] [img]http://files.jb51.net/file_images/article/201407/2014072817405032.png[/img] [img]http://files.jb51.net/file_images/article/201407/2014072817405033.png[/img] [img]http://files.jb51.net/file_images/article/201407/2014072817405034.png[/img] [img]http://files.jb51.net/file_images/article/201407/2014072817405035.png[/img] [img]http://files.jb51.net/file_images/article/201407/2014072817405036.png[/img] [img]http://files.jb51.net/file_images/article/201407/2014072817405037.png[/img] [img]http://files.jb51.net/file_images/article/201407/2014072817405038.png[/img] [img]http://files.jb51.net/file_images/article/201407/2014072817405039.png[/img] [img]http://files.jb51.net/file_images/article/201407/2014072817405040.png[/img] 29.跳出一个提示，选是。 [img]http://files.jb51.net/file_images/article/201407/2014072817405041.png[/img] [img]http://files.jb51.net/file_images/article/201407/2014072817405042.png[/img] [img]http://files.jb51.net/file_images/article/201407/2014072817405043.png[/img] [img]http://files.jb51.net/file_images/article/201407/2014072817405044.png[/img] [img]http://files.jb51.net/file_images/article/201407/2014072817405045.png[/img] [img]http://files.jb51.net/file_images/article/201407/2014072817405046.png[/img] [img]http://files.jb51.net/file_images/article/201407/2014072817405047.png[/img] [img]http://files.jb51.net/file_images/article/201407/2014072817405048.png[/img] [img]http://files.jb51.net/file_images/article/201407/2014072817405049.png[/img] [img]http://files.jb51.net/file_images/article/201407/2014072817405050.png[/img] [img]http://files.jb51.net/file_images/article/201407/2014072817405051.png[/img] [img]http://files.jb51.net/file_images/article/201407/2014072817405052.png[/img]