Hi, I can't comment on Windows 10.
To use drives with more than 2 TiB you need to format the drives with GPT instead of MBR. This should work when using the legacy BIOS boot option, too. IOW it shouldn't require U/EFI. Booting an USB stick containing a Linux requires either to enable the legacy BIOS boot option or an EFI partition, if you can't enable the legacy BIOS boot option, e.g. due to a modern Intel GPU, that doesn't allow to enable the legacy BIOS boot option. However, even if you cannot enable the legacy BIOS boot option, you still should be able to disable secure boot. You don't need secure boot to boot a Linux. Secure boot is insecure, since to rely on a security measure with a bug that cannot be fixed, is worse than no security measure at all and using it with Linux makes booting unnecessarily complicated, see https://en.wikipedia.org/wiki/UEFI#Criticism . I recommend to rely on signed checksums when using Linux and if you want more than that, consider to harden Linux, instead of using a questionable firmware thingy. I'm using https://www.ventoy.net/en/index.html for my Linux USB sticks. I noticed just one pitfall. On my old machine it works, if the partition holding the Linux images is formatted as ext4. On my new machine I'm forced to stay with a fat formatted partition. Neither Ventoy upstream, nor I understand why I cannot continue using ext4 to hold the Linux images on the new machine. Regards, Ralf -- xubuntu-users mailing list xubuntu-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/xubuntu-users
