Installation Error File Vault

Hi,

trying to install macOs 10.13 on a MBP 11,1 (late 2013), the installer does not install on the original Apple SSD an error message is shown: "Installation on this volume is not possible since there are still users who are using an older version of FileVault"

- File Vault is deactivated and was never used on this MBP

- There is no other user registrated on this MBP (user in settings is only me, guestaccount deactivated)

- shared icloud account (Kalnder and notes) deactivated


i have no idea how to proceed.....any ideas?


Thank you in advance,

Stefan

Replies

This thread may or may not shed some light on your issue.


https://forums.developer.apple.com/thread/78661

Solved!

Deinstall of Sonos App fixed this problem!

I tried to uninstall with Clean My Mac 3, this did not help, i tried to uninstall with appcleaner, this did not help either!

The solution was to select uninstall in the Menu within the Sonos App!


Cheers,

Stefan