Steps Involved:
- Open SharePoint 2010 Management Shell by going to Start | All Programs | SharePoint | Microsoft SharePoint 2010 Products | SharePoint 2010 Management Shell (Run as Administrator).
- Run the following script.
Powershell Script:
## Delete the document workspace site using SharePoint 2010 web service in powershell
$uri="http://serverName:10736/sites/ECT2/DWS1/_vti_bin/DWS.asmx?wsdl"
## Web Service Reference - http://Site/_vti_bin/DWS.asmx
$dwsWebServiceReference = New-WebServiceProxy -Uri $uri -UseDefaultCredential
$dwsWebServiceReference.DeleteDws()

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