W10 install in UEFI mode

When I receive the Windows 10 download on July 29th or whenever they send it to me, I want to install it in UEFI mode.
I am using Windows 8.1 64 bit currently and it is installed in BIOS mode. (Long story, I've never been willing to clean install after I had W8.1 up and running, I have new different computer now but same OS. Like I said, long story).
All my hardware is UEFI capable.
So will the new OS tell me which it recommends? Will I be required to clean install W10 to switch everything to UEFI?
Will this be self explanatory during the install process?
My system specs:
Operating System: Windows 8.1 64 bit
Motherboard: Asus Sabertooth 990FX R2.0
CPU: AMD FX8320 8 Core CPU 3.5- 4.9Ghz
Graphics: Sapphire Radeon R9 280X
Memory: Team Zeus DDR3 16Gb
SSD: Samsung 850 Evo 500Gb
HDD: WD 1000Gb Black
External HDD: WD 1000Gb My Book
OD: Pioneer Blu-ray Drive combo.
PSU: EVGA 850W modular Gold certified
Thanks.

edit:I misunderstood your question, so I edited the message.

I am using Windows 8.1 64 bit currently and it is installed in BIOS mode.
Will I be required to clean install W10 to switch everything to UEFI?

Yes.

Asus motherboard with UEFI firmware - How to install Windows 7/8/10 64-bit in UEFI Boot Mode. -> link

Note:You need to select to boot from the UEFI type (marked UEFI in the boot menu) if you want to install Windows 7/8/10 64-bitin UEFI Boot Mode (see screenshot below).

Note:You do not need to change the boot order of drives in your UEFI firmware settings.
- Connect your Windows 7/8/10 64-bit USB flash drive (Note:FAT32 file system) or insert your Windows 7/8/10 64-bit DVD.
- Restart the computer.
- Press the correct key to enter the boot menu (Esc, F8, F9, F10, F11, F12).
- Select to boot from the "UEFI: USB/DVD device name".

Here is info about UEFI Boot Mode(installing using the GPTpartition style) and Legacy BIOS Boot Mode(installing using the MBRpartition style). -> link

You have to upgrade your Windows 8.x in order to get the free upgrade, that means leaving it in the same boot mode it's always been in. After that upgrade, you can download the ISO from Microsoft and do a clean install, but you must perform the upgrade at least once.

You have to upgrade your Windows 8.x in order to get the free upgrade, that means leaving it in the same boot mode it's always been in. After that upgrade, you can download the ISO from Microsoft and do a clean install, but you must perform the upgrade at least once.

Yes I think you're correct. I will hold off on installation of W10 for a few days and come back here often to this forum often to see what others are experiencing and I'll be looking for some nice screenshots of the install process.

You have to upgrade your Windows 8.x in order to get the free upgrade, that means leaving it in the same boot mode it's always been in. After that upgrade, you can download the ISO from Microsoft and do a clean install, but you must perform the upgrade at least once.

(Subbed) This is what I figured. Thankfully my win 8.1 install is in UEFI and I reformatted only a month or so ago so prolly no
need to do a clean install but I might anyway just to make sure I dont have a windowsold folder etc.