EDIT: The entire point of the SHAREUSER account was to do one of two things. Either a) allow remote scanning across this particular client’s VPN. or b) authenticate with a shared network folder across the VPN without posing a security risk due to the amount of floaters who use this PC. This is now deprecated in case B. In case A, you want to keep the credentials, due to remote scanning still relying on corporate resources.
if you have a network share that you access often, instead of having to type the IP in the address all the time, you can add it to the hosts file in %windir%\System32\drivers\etc\ like so…
…then for every time you type \\myserver in windows explorer window, it’d be the same as typing \\192.168.1.5
days, months, years go by and now you can’t access the shared folder via it’s IP \\192.168.1.5. You may still be able to access it via \\myserver but not via ip.
Open Credential Manager in Control Panel and look for the IP address under Windows Credentials (it would have a username as XXXX\SHAREUSER); click “Remove from vault”