Urgent request - UEFI options etc. for installing Windows

[Sumanji]

Hi,

I'm installing Windows 10 from scratch on a new Alienware Alpha, but I've never dealt with all this UEFI malarkey before.

What options should I use (UEFI vs. Legacy?). Should I enable secureboot?

I basically want to retain the flexibility of booting other things (e.g. Memtest, SteamOS, other Linux distros) and using multiple OSes, so should I just use legacy mode? What sacrifices would I make if I don't go all-in with UEFI?





Cheers,

Su

[edit] Additonal question; will my Windows 10 key still be "recognised" automatically if I don't use UEFI?
[edit2] NVM, I booted into the original Dell Windows install and use a program to retrieve the Windows 10 key - so I should be safe to just nuke that partition now, right?

 

[Sumanji]

Hi,

Thanks for replying! I wanted to install Windows to a different drive; I went with UEFI but secure boot off. Seems to have worked well (didn't need to enter a key or anything), so I had formatted the other HDD and will use as storage.

I feel like I missed a trick by not enabling SecureBoot though - is it possible for me to do that now, even though I installed Win10 with it disabled.

Cheers,

Su