Disable account
From MyWiki
Disable-QADUser [-Identity] <IdentityParameter>
[-Connection <ArsConnection>]
[-ConnectionAccount <string>]
[-ConnectionPassword <SecureString>]
[-Control <hashtable>]
[-Credential <PSCredential>]
[-Proxy]
[-Service <string>]
[-UseGlobalCatalog]
[-Confirm]
[-WhatIf]
[<CommonParameters>]
