IIS Error

When trying to enable an IIS website, you will receive an error similar to this…



This can happen with normal web applications, including SharePoint 2010/2013.


This issue is due to the file 'applicationhost.config' being corrupted.  To fix

  1. Backup the corrupted file at C:\Windows\system32\inetsrv\config\applicationhost.config 
  2. Restore a copy from the backup directory at C:\inetpub\history\


Then start \ restart IIS.

The problem will be resolved.