1.    23 Sep 2015 #1
    Join Date : Sep 2015
    Posts : 2
    Windows 7

    few questions regarding the Windows 10 installation in UEFI mode

    First of all thanks for the excellent guide.

    Windows 10 - Clean Install

    I have a few questions regarding the Windows 10 installation in UEFI mode:

    I read in a couple of websites that for the installation and boot to be in "full" UEFI mode the option CSM must be disabled, can someone confirm this?

    I have a GeForce GTX 460 which does not have the necessary GOP feature to have a UEFI boot, can i turn on the CSM option for a Legacy boot despite having Windows 10 installed in UEFI mode?

    Can i format (in GPT mode) and partion my hard drive prior to the Windows 10 setup? Would i still need to delete all partions in the Windows setup to get the 4 partitions necessary for the UEFI installation? Or will they automatically appear since the hard drive was previously formated in GTP mode?

    Thanks in advance and sorry for the bad english.
    Last edited by badjouras; 23 Sep 2015 at 15:18.
      My System SpecsSystem Spec

  2.    23 Sep 2015 #2
    Join Date : Aug 2015
    Posts : 126
    windows 10

    Need some Clarification....
    1. The OS you are updating from (7 or 8.1)
    2. The Current Boot (UEFI secure boot On/Off or Legacy)
    3. Sata Operation mode in BIOS (AHCI or anything else)

    If running win8 or 8.1, no changes are needed to be made in BIOS while updating
    If running 7 thing go a bot trickier..
      My System SpecsSystem Spec

  3.    23 Sep 2015 #3
    Join Date : Sep 2015
    Posts : 2
    Windows 7

    To answer your questions
    1. Windows 7 64 bits
    2. Legacy
    3. AHCI
      My System SpecsSystem Spec


Similar Threads
Thread Forum
Booting a Win 10 DVD in UEFi Mode for Windows installation
How do I set my BIOS to have the DVD boot and install Windows 10 in UEFI mode? I do see a setting on my Asus motherboard UEFI "CSM Compatability" and in there are three options: UEFI and Legacy OPROM Legacy OPROM only UEFI only Do I select...
Installation and Setup
Solved Some questions regarding clean installation of Windows 10
I have looked at this guide: Windows 10 - Clean Install - Windows 10 Forums But I am still a bit confused regarding the part to choose "where you want to install Windows 10" When at the screen showing you the different hard drive partitions, I...
Installation and Setup
Solved Windows won't boot in UEFI mode, deleted EFI partition.
Okay, so the other week i received a new Clevo P650SE laptop. The laptop only had a 500GB 7200RPM HDD with Windows 10 to begin with, so yesterday i added my Samsung 840 EVO SSD. As i wanted this to now be the primary drive, i made another new...
Installation and Setup
Switching motherboards with Windows 10 UEFI installation
Hello all, I didn't really know where to post this besides here. I currently plan on doing a clean install on a new ssd of Windows 10. My current mobo is a ASUS P8z68-V which has UEFI so I plan on doing a UEFI installation of Windows 10. However, I...
Installation and Setup
Solved Few questions about upgrading from Windows 7, UEFI and compatibility.
Hey everyone. Fist post :) So I'm in the process of getting my system upgrade-ready for Windows 10 and I would appreciate if anyone could clear up some of my questions. It's the first time I will attempt an actual "upgrade" instead of a clean...
Installation and Setup
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd
All times are GMT -5. The time now is 14:48.
Find Us
Twitter Facebook Google+

Windows 10 Forums