The article should be more precise about when the actual encryption is happening. To my knowledge it is performed only after rebooting. Am I right to assume, th

The article should be more precise about when the actual encryption is happening. To my knowledge it is performed only after rebooting. Am I right to assume, that if for some reason the machine is powered off before booting up again, or if it is unable to boot up due to drive encryption, raid or other circumstances (i.e. the checkdisk and ransomware screens are not displayed), the drive is fully restorable by recovering the MBR/VBR?