Setup detected existing files in the instance specific folder for the application files {0}. The folder must be empty for ...

Setup detected existing files in the instance specific folder for the application files {0}. The folder must be empty for Setup to proceed.
To ensure that the folder is completely empty, in Windows Explorer, on the Tools menu, click Options. Select the View tab, and in the list of advanced settings, select the Show hidden files and folders option and clear the Hide protected operating system files check box. Then open the installation folder.

Setup could not update the Expression Builder entry in Web server configuration file. The Expression Builder name or type ... Setup could not update the Provider entry in the Web server configuration file. The provider name or type is an invalid string. ... Setup detected an existing Application Object Server instance named '{0}'. Instance names must be unique. Enter another name. ... Setup detected existing files in the application files instance specific installation folder {0}. The folder must be empty ... Setup detected existing files in the instance specific folder for the application files {0}. The folder must be empty for ... Setup detected that files in the application folder \"{0}\" are in use. Please stop all the Application Object Servers using ... Setup detected that you are installing {0}, but Windows Internet Information Services (IIS) version 6.0 or 7.0 is not installed ... Setup determined that the executable '{0}' does not exist or the caller does not have the required permission to do this ... Setup did not download any updates from the Microsoft Update service. To download and apply updates manually, use the Windows ...