If by any chance you “accidentally” delete and “accidentally” click YES on the pop-up asking if you are sure if you want to delete the website, here’s what you may want to try.

First of all for the sake of the argument let’s say you don’t have a backup configuration file.

If you right lick the server All Tasks -> Backup/Restore configuration you can select one of the previously created configurations. They are done automatically so you should have at least 6 previous versions, or the initial setup if the others aren’t working.

Second scenario imply that you saved too many configurations in the property pane of the pages trying to put it back that no backup configuration will help you anymore. In this case you should have a physical backup of the files and folders of the C drive. A snapshot or a .bck will do the trick as long as they are browse able. You need to explore the backup and go to windows->system32->inetsrv and copy the file Metabase.xml . Run a command prompt and stop all the IIS services with the command NET STOP IISADMIN /Y . After all the processes are stopped go to C:\Windows\System32\Inetsrv , find Metabase.xml and rename it to something like Metabase.xml_1 (doesn’t matter, it’s just to keep both versions) and paste the file that you got from the backup. Go to the Services pane (run -> services.msc) and start all the services that are on Automatic (check the list of stopped services from the command prompt earlier used). This should be all you need to get it up and running again.