Discription //描述
When opening ArcMap or ArcCatalog, an ArcGIS Desktop dialog box displays the following message: //当打开 ArcMap 或ArcCatalog时，出现一个DeskTop对话框信息：
"Please wait while Windows configures ArcGIS Desktop" //"Please wait while Windows configures ArcGIS Desktop"
The program continues to install ArcGIS Desktop and asks for the installation source if it cannot find it. //程序继续安装ArcGIS Desktop ，若找不到安装文件，则要求设置文件路径
Cause //原因
ArcMap or ArcCatalog is looking for a file or group of files that is no longer available. The removal of the file(s) may be caused by the installation of a new software, system update or anti-virus. //ArcMap或ArcCatalog找不到需要的文件，其原因可能是由于安装了新的软件、系统更新或反病毒软件等。
Solution or Workaround //解决办法
Look in the System Event Viewer: //打开时间查看器
- Click Start > Control Panel > Administrative Tools > Event Viewer. //开始＞控制面板>管理工具>事件查看器
- Highlight the Application or Application Log in the Event Viewer //打开应用程序
- Double-click on the latest MisInstaller log. If it does not appear similar to the one shown below, click on the next one. //打开最新的几条事件，寻找与下图相似的事件
4. Search for the missing file from another workstation or through the Internet. //通过网络或安装软件搜寻丢失的文件
5. Open the Windows Explorer and navigate to the specified directory shown in the Event Viewer. Copy and paste the missing file into the directory. //将搜得的文件放到相应的路径下。
根据上面的说明，我遇到的问题是缺少msxml4.dll，从网络下载了这个文件放到对应的路径下。再次启动ArcMap，问题解决。
