----Installer wait while Windows configures ArcGIS Desktop
Error Message error Message
When launching ArcMap or ArcCatalog the Windows MSI installer launches and tries to repair the ArcGIS Desktop installation . The following message displays:
"Please wait while Windows installer configures ArcGIS Desktop."
If The above message displays, open Event Viewer and perform the following steps:
1. Click Start > Run.
2. Type ' EVENTVWR '.
3. Select applications.
4. Look for entries with ' MsiInstaller ' under the Source column.
Double-click on the entry with ' MsiInstaller ' and the following error message displays: "Detection of product ' {1f34839e-4 826-4B64-B1B3-42E5AE8DEC5A} ', feature ' microsoftmsms ', component ' {303994BA-6487-47AE-AF1D-7AF6088EEBDB} ' failed. The resource ' C:\WINDOWS\WinSxS\x86_Microsoft.MSXML2_6bd6b9abf345378f_4.20.9818.0_x-ww_8ff50c5d\msxml4.dll ' does Not exist. "
Cause
A shared component. ArcGIS Desktop and Microsoft use is missing. MSXML4.dll is required by ArcGIS Desktop and if the program cannot find this file, it begins to repair the installation.
Solution or workaround
1.Open Windows Explorer and browse to C:\WINDOWS\WinSxS\x86_Microsoft.MSXML2_6bd6b9abf345378f_4.20.9818.0_x-ww_ 8ff50c5d.
2.If The directory cannot is found, proceed to the next step. If The directory exists, delete it and proceed to the next step.
3.Open a Web browser and go to the Microsoft link in related information below.
4.Download and install MSXML 4 Service Pack 2.
NOTE
&S226; If MSXML 4 Service Pack 2 is already installed, download again&S226; Download ' Msxml.msi ' only&S226; If This service pack is previously installed, an error message occurs during installation. This is expected; No action is required
5.Once finished, run ArcMap again and see if the problem is corrected.
The simplest method (by Hailong)
Download http://www.xdowns.com/soft/184/dll/2008/Soft_43653.html in the Msxml4.dll, search ' C:\WINDOWS\WinSxS\x86_Microsoft.MSXML2_6bd6b9abf345378f_4.20.9818.0_x-ww_8ff50c5d\ this folder, Put the Msxml4.dll in this directory and run ArcMap again to run flawlessly.
Troubleshoot Windows Installer configures issues that occur after ArcGIS installation