My very best computer would need TPM enabled AND have my MBR changed to GPT, which risks data loss.
James, check this out: Convert MBR to GPT Without Data Loss
Yesterday I used this guide to convert four drives, one each on four different computers, from MBR to GPT. Each of those drives was an SSD containing the operating system (Win10) and programs. There was no data loss. All machines resumed normal operations immediately following the conversions.