MBR2GPT.EXE converts a disk from the Master Boot Record (MBR) to the GUID Partition Table (GPT) partition style without modifying or deleting data on the disk. The tool runs from a Windows Preinstallation Environment (Windows PE) command prompt, but can also be run from the full Windows 10 operating system (OS) by using the /allowFullOS option.

The conversion tool will attempt to remap all drive letter assignment information contained in the registry that corresponds to the volumes of the converted disk. If a drive letter assignment can't be restored, an error will be displayed at the console and in the log, so that you can manually perform the correct assignment of the drive letter.




Disk Footprint Tool (dfp.exe) In Windows 10