Delete orphaned site collection

. Run the following command:

stsadm -o databaserepair -url http://<URL_of_WindowsSharePointServices_Site> -databasename <name of database that contains the orphan item>

2. If the above command reveals any orhpaned sites, then run the above command with -deletecorruption parameter:

stsadm -o databaserepair -url http://<URL_of_WindowsSharePointServices_Site> -databasename <name of database that contains the orphan item that is to be deleted> –deletecorruption

 

it should delete the site collection

if not check the content database associates with the orphaned site and delete the content data base