Can't disable guest account

[paaast]

Since the update to High Sierra (Beta 7) I always see the guest account user if I start my MacBook. I already enabled and disabled the guest user in the System Preferences.

Any ideas what else I could try?

 

[Kekinash]

it's dummy account used by Find my Mac to let the thief to use the Guest account so it will connect to the internet and you will able to use Find my Mac to locate your Mac. Disabling Find my Mac deletes the account.