08-22-2020, 05:40 PM
Even Microsoft has abandoned any effort to provide Windows on a USB (old "Windows To Go" program). The main problem is that Windows, on an UEFI BOOTed System really needs exclusive use of that FAT partition that Ventoy provides... I don't think the two of them can co-exist there.
What you can do is use the rest of the VENTOY prepared device for most anything you want... files, installers, extra storage, whatever, and still have the VENTOY experience when using the separate device. Ventoy prepares the non-FAT partition by DEFAULT as an exFAT formatted partition. Windows 10 understands this format just fine. But you aren't limited to exFAT. You may reformat the exFAT partition to NTFS and use it just like a standard Win10 partition. The whole thing is pretty flexible... just not quite as flexible as you're describing above.
What you can do is use the rest of the VENTOY prepared device for most anything you want... files, installers, extra storage, whatever, and still have the VENTOY experience when using the separate device. Ventoy prepares the non-FAT partition by DEFAULT as an exFAT formatted partition. Windows 10 understands this format just fine. But you aren't limited to exFAT. You may reformat the exFAT partition to NTFS and use it just like a standard Win10 partition. The whole thing is pretty flexible... just not quite as flexible as you're describing above.