I've just got a new MacBook Pro, currently running macOS 10.13.6 High Sierra. As I'm the only one using it, it only has one user account, which does have admin privileges. However, I'm encountering some problems attempting to enable FileVault 2 disk encryption.
If I try the standard method of going into settings -> security & privacy, then clicking "enable FileVault", nothing happens. No error message, it just doesn't respond.
Going into terminal, I've tried running
sudo fdesetup enable, which returns the following message.
Error: A problem occurred while trying to enable FileVault. (-69594).
Based on a previous answer I saw on here, I then tried booting into recovery mode, and running
sudo rm /var/db/.AppleSetupDone.
This tells me that the sudo command is not recognised. Alternatively, running without sudo returns
/var/db/.AppleSetupDone: No such file or directory.
Basically, I've no idea what else to try, short of wiping the computer and starting from scratch. Any ideas (preferably FileVault, but I'll accept other full disk encryption methods), or is that my only option?