Adam Bertram shows how to use Powershell and cmdkey to clear out cached credentials:
It is even easier to use cmdkey with PowerShell. IT can build a small wrapper script that can manage cached credentials on one remote computer at a time and perform the action just as quickly on multiple computers at once.
The following example uses a PowerShell module called PSCredentialManager. IT pros can download the module from the PowerShell Gallery by running Install-Module.
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