• user maps Z-drive for their work and use a persistent settings. after restart the Z-drive letter will already be claim.
  
• a helpdesk person needs an incidently mappings, but he forgets to remove it. each time an user logged in persistent settings will not be automatically off.
  

You can prevent creation of ghost drives by using the command:

code:

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if exist c:\winnt\nul net use /persistent:no

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Greetings.