I have deleted NTFS drive in Windows. After I have added it in Linux I did a quick format to Ext4 (
sda9), but it says that 12 GB or (2% of the drive capacity) is used.
Is this normal? Or should I do a full format? Also moving from NTFS to Ext4 is it recommended to do a full format (although quick format seems to be working), does it improves efficiency?