Many users experience boot failures on a Mac because their USB drive is partitioned as Master Boot Record (MBR) instead of GUID Partition Table (GPT). Mac computers require GPT to recognize a drive as bootable. Run Command Prompt

Many users think ExFAT is the answer. It is not. ExFAT is unstable for large video projects and lacks journaling.

: At roughly $59.00 , some users find it expensive for a single-purpose utility. Trial & Pricing

Type diskpart , then list disk . Identify your USB drive's number.