Clean command does nothing at all to alter that but when you create partition primary the MBR just starts afresh? Is it just that the Clean command removes all partitions. That is why I thought, after the Clean command, Create Partition Primary must be what puts the MBR back in a clean state on the drive along with the primary partition. Ive always thought that the Clean command wipes the MBR, and whatever the format is (NTFS or FAT32) removing all data from the drive giving you a totally blank flash drive. Thanks for clarifying things for me.ĭo you mind just giving me a bit more info on what exactly the Clean command does.ĭoes it wipe the MBR partition table putting it back to its original state when the flash drive was purchased? However, a GPT drive can only be booted from UEFI.Hi mate. Legacy BIOS (or CSM mode) and UEFI can both boot MBR drives. The reason the convert mbr command is there is to ensure universal compatibility. MBR and GPT are just different methods of storing the information that defines the partitions on the physical drive. The physical drive itself is either MBR or GPT. Remember, partitions are neither MBR nor GPT. It just creates a partition under whichever partition type the drive is set up for. The create primary partition command will not change a GPT drive to MBR, nor will it change an MBR drive to GPT. Other Info: Logitech Z625 speaker system, Internet Speed: 1 Gbps Download and 35 Mbps UploadĪntivirus: Windows Defender and Malwarebytes Premium

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