Possible to convert gpt to mbr without losing data?

For converting gpt to mbr without losing data, third party disk partition software is better than the built-in diskpart tool primarily because it offers data preservation, user-friendly interfaces, and advanced features that reduce risks. Unlike diskpart, which requires a complete wipe of the disk, 3rd-party tools can perform the conversion without deleting existing partitions provided they meet certain conditions. This is especially valuable when dealing with secondary storage drives containing important data, as manually backing up and restoring large volumes can be time-consuming and error-prone.

Partition software also simplifies the process for less technical users for converting GPT to MBR without losing data. While diskpart relies on command-line inputs, which can be intimidating and prone to typos, graphical tools provide intuitive wizards that guide users through each step. 

Some even offer one-click conversion options, automatically handling technical constraints like sector alignment or bootloader updates. For system disks, certain tools can also adjust boot settings or repair the Windows Boot Manager post-conversion—a task that would otherwise require manual intervention with bootrec or a full reinstallation.