ELI5 UEFI Windows 10 Install

[Noyu]

can someone ELI5 this to me? I don't remember selecting an option install uefi or legacy. The OS just installed itself?

this is super confusing for me.

currently I'm super fine with how my rig is now.

but I'd like to know more about this so the next time I reformat, I can try it out.

 

EDIT: at my PC's current state, if I enable Windows 8/10 Features on my BIOS and disable CSM Support, the OS won't boot.

[STRMfrmXMN]

Use the Windows 10 USB creation tool. Deny your UEFI any compatibility with Legacy OSes or USB hardware, meaning turn off CSM and anything resembling "Legacy Boot."

 

When you boot up the installer you simply make sure the drive you want to install the OS on is select, click "New," "Apply," and continue. This should have created four partitions.

[Noyu]

36 minutes ago, STRMfrmXMN said:

Use the Windows 10 USB creation tool. Deny your UEFI any compatibility with Legacy OSes or USB hardware, meaning turn off CSM and anything resembling "Legacy Boot."

this isn't really an ELI5. anyways does it have any advantages over Legacy Boot? How would I know if all my hardware is UEFI-ready?

 

reeee this is so confusing

[STRMfrmXMN]

10 minutes ago, Noyu said:

this isn't really an ELI5. anyways does it have any advantages over Legacy Boot? How would I know if all my hardware is UEFI-ready?

 

reeee this is so confusing

If your hardware made made post Sandy Bridge Intel or is a very recent AM3 board or any AM4 board, then your system supports EFI. And BTW, your "BIOS" as many incorrectly call it, is your UEFI (if your motherboard supports it). So if you have an old Core 2 Duo system, that has the traditional "BIOS" and only supports Legacy installs. If you have, say, an AM4 system, your system has a UEFI, and supports both Legacy and EFI installs of whatever OS you choose.

 

EFI is a boot protocol, like Legacy, but is newer, supports volumes larger than 2TB for booting off of, is a little bit faster to boot unless secure boot is on (negligible at that point), and secure boot allows for a security check at startup. The clock within your OS also talks to your UEFI, so if you connect your PC to the internet at any point in time within an EFI-install of an OS, the clock on your motherboard will be exactly correct.

 

There's no reason to reinstall Windows over something so negligible to most people, but it's not a terrible idea to do it in the first place.

There's a speed test for you, if it matters to you.

 

[Noyu]

OK NOW THAT'S AN ELI5. thanks man!

14 minutes ago, STRMfrmXMN said:

There's no reason to reinstall Windows over something so negligible to most people, but it's not a terrible idea to do it in the first place.

I won't be doing a reinstall just because of this.

I reformat/reinstall OS almost regularly just cause.

Especially when the current install's been through so much changes.

 

again, thanks!