How to reset applicationhost.config in IIS

 

Sometime your IIS setting may be corrupted. So you want to reset everything to factory settings.

Here are the steps:

1. In PowerShell, run these commands:

· Get-WindowsFeature

· Uninstall-WindowsFeature Web-Server

· Uninstall-WindowsFeature WAS

2. Using Server Manager: reinstall Web Server (IIS)

3. Open IIS Manager, the applicationhost.config file should be autogenerated.

Reference: http://blogs.msdn.com/b/chaun/archive/2010/05/26/iis7-x-a-common-mistake-when-reinstalling-iis-7-x-errors-0x80070490-and-0x80070002.aspx