Remove Cached UNC URL Credentials Win 10/Server 2012
Solution 1:
This information windows save in registry.
Press Win+R to bring up the Run dialog box. Type regedit and hit Enter.
For windows 8
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\TypedPaths
For windows server 2012 is more complicated
[HKEY_USERS\S-1-5-21---****-500\Software\Microsoft\Windows\CurrentVersion\Explorer\TypedPaths]
Solution 2:
If you have already removed all instances of saved credentials and you are still able to connect to a share without providing explicit credentials, I believe there are two possibilities:
Your share is allowing anonymous/guest connections
You are logged into your workstation with credentials that are valid for the share and Windows is just passing through your credentials automatically. This could be either domain credentials or even local credentials that just happen to have the same username/password as an account on the fileserver.