And I forgot to mention, that this is the method to recover data if you have a dynamic disk that gets a corrupted partition database and becomes unusable.

Not only was I able to backup the data, but I was also able to convert the drive from Dynamic to Basic using the tool. Great find. I recovered a good 120GB worth of work that I have now backed up.

Learn how to convert MBR to GPT disk without data loss in Windows 11/10, using Diskpart, Gptgen, or AOMEI Partition Assistant. MBR disks support only 4 partition tables.