Workaround for when windows shares have bad credentials
Not sure if this is the correct way to remove badly credentialed shares, but a start
When you have a device on a network share and get the login incorrect, there seems to be no way to remove the bad "guess" or login so you can retry or correctly enter a password. This is via the GUI access to shares.
This may be a way to force the credential to go away, by using a command line net command to remove it. Untried thus far, but may work.
Execute "net use" in windows cmd box. It will display all the links.
Run following command to remove your PI's link: