I work for a company that has several Macs available for customers' use. These are basically demo-machines that they can play with, and at the end of each day, the machines are wiped and rebooted. The way we do this is simple: the machines auto-login to the Guest account, which will wipe the account at the end of the day. Well, getting a few new Macs in this week, I simply copied over the entire Guest user account to the new machines to avoid reloading all the demo content, preferences, etc. And truthfully, the machines have been working great. Except one thing. The computer keeps giving me that annoying message that says "Safari (or Finder, or System Preferences, or anything!) wants to use keychain 'login'". And asks for the login keychain password. Well here's the thing: the Guest accounts don't have passwords! So I looked up a little bit on this topic, and did things like... Went to "Keychain List" in the Edit menu of Keychain Access, and deleted both the "login" and "system" keychains. No help. I went to Preferences in Keychain Access and said "Reset My Keychain". When doing this, however, it asks for the new password for the login keychain. The problem with this is that I cannot leave the field blank! The Guest account doesn't have a password, so how am I supposed to not create a password? Does anybody have any ideas? Thanks.