In a device (UEFI) with two Windows 10 installations (one clear the other bitlocker encrypted) I noticed a difference in the boot sequence and boot time if the boot is changed from standard to legacy (using bcdedit).
With standard boot you have the new graphics and the boot sequence is as follow:
clear OS: start pc, bootmanager loads, OS selection, OS boots up
Bitlocker OS: start pc, bootmanager loads, OS selection, system reboots automatically, password screen, OS boots up
With legacy boot you have the old less fancy but effective graphics and the boot sequence is as follow:
clear OS: start pc, OS selection, OS boots up
Bitlocker OS: start pc, OS, selection, password screen, OS boots up
What I noticed is that with legacy boot in a UEFI system the boot sequence and time is much faster but I'd like to know from the experts what are actually the differences in standard vs legacy boot in windows 10? Is there any disadvantage in using the legacy boot, which appears to be faster and more effective, in a UEFI installation?
To clarify: it seems the question has not been understood, the BIOS is in UEFI mode and the two Windows installations were installed in UEFI mode and GPT. By using the command bcdedit you can change the boot in Windows 10 from standard to legacy, this setting doesn't change the BIOS which stays in UEFI mode! I'm just asking what are the pros and cons of switching to the legacy boot (the BIOS stays in UEFI!!!), from what I have seen apart from having the old graphics it is also faster...