USB will be bad as well, for a workgroup office environment, your best bet is to network the printer. You're looking for a solution to the wrong issue.
If you really want to use a share on a computer, delete the share, don't just rename it. Since you are getting an error, pick another name, you are already getting info as to what's wrong, shoule be easy to fix. From your post it seemed like you already had the share created but no-one could access it, not that you could not even create the share.