Downgrade to Win 7 Pro from Win 8.1 Pro

I will be downgrading my T440s to Win 7 64 bit. I was reading the instructions that came with the Win 7 CDs from Lenovo and on page 4 it states on item #6 "select GPT partition style or MBR partition style". From what I understand I would use GPT partition style because the t440s uses a UEFI bios. Is this correct? or do I use the standard mbr.
Moderator comment: Please refrain from bumping your thread(s) / post(s) more frequently than 3 days. Doing so, unfairly, pushes other members' threads downwards. Bumping post(s) removed.

Hi Dizz buster
Welcome to Lenovo Community!
To downgrade Windows 8.1 to Windows 7, please follow the below steps.
Note: Please make sure that all your data is safe and you have created backup of your personal data.
1. Enter the BIOS setup,press F9 key to load default configuration.
2. Find out the "UEFI Boot" option,turn the "UEFI Boot" to "Disabled".
3. Make sure the operating system Optimized Defaults option is set to Disabled/other OS.
4. Press F10 key to save the configuration and reset the computer.
5. Insert the Windows7 installation DVD, follow the instructions of Windows7 installation DVD to install Windows7.
Hope this helps! 
Best regards,
Hemanth Kumar
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