http://blog.binaryrepublik.com/2012/12/powershell-remove-user-account.html http://sharepoint.stackexchange.com/questions/34523/powershell-to-remove-site-user-permission https://social.technet.microsoft.com/Forums/office/en-US/8b2742c9-69a2-44b5-8b70-c830de871767/how-to-remove-specific-user-...
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