Windows 10: What exactly is UEFI and why is it stopping me from installing Win10?

I have the following components:
Motherboard: Gigabyte GA-X38-DS5
4x WD20EARS HDDs

Using the onboard Intel Matrix RAID Controller, I setup the drives in RAID5.

So I want to install Windows 10 on the 4 WD HDDs, which are in RAID5. I know the motherboard is old, but it still works, is quick, and would cost a lot to replace, so why not?

I downloaded the Microsoft Windows 10 image using the Image Creation Tool which created a nice little package on my USB key. So far so good. I boot the USB key into the Windows 10 setup and get to the part where it asks me to choose a drive to install to. I'm presented with one drive, Drive0, which is 5589GB in size. Automatically, setup shows a warning "Windows can't be installed on this

drive" and clicking Show Details shows the warning "Windows cannot be installed to this disk. This computer's hardware may not support booting to this disk. Ensure the disk's controller is enabled in the computer's BIOS menu".

I Shift-F10 to get into the CMD and run DISKPART and created a new partition. When I went back to the setup, the new 5589GB partition was ready, however the waning had changed to "Windows can't be installed on drive0 partition1 and clicking on Show Details shows the warning "Windows cannot be installed to this disk. The selected disk is of type GPT partition style....".

Ok, at this point I am thinking that due to the age of the motherboard, it does not have UEFI and thus does not support booting from a GPT disk.

I went back into the Intel Matrix RAID setup and deleted the RAID configuration and this time created a RAID5 with only 3 disks, leaving 1 2TB drive free.

I again ran Setup and this time it presented me with the following disks:

Drive0 Partition1 Size=579MB Type=System
Drive0 Partition2 Size=1862GB Type Primary
Drive1 Unallocated Space Size=3726GB Type=Blank

I was now able to select the Drive0 Partition2 and install Windows10. Yay! Gr8. But this is not where I wanted to install the OS- on a single stand-alone disk.

So what happened? Why did it work this time. It looks to me like the Setup would not install on a partition which was greater than 1862GB when the motherboard is not UEFI. Does this make sense?

I tried again, still using the 1862GB single drive and the 3726GB RAID5 drive, using DISKPART I deleted all partitions on the RAID5 drive, converted it to MBR, and created a new primary 1953GB

partition. I now have the following options in Setup:

Drive0 Unallocated Space Size=1863GB Type=Blank -> This is the single 2TB drive.
Drive1 Partition1 Size=1953.1GB Type=Primary
Drive1 Unallocated Space Size=94.9GB Type=Blank
Drive1 Unallocated Space Size=1678GB Type=Blank

Automatically, setup shows a warning "Windows can't be installed on this drive" and clicking Show Details shows the warning "Windows cannot be installed to this disk. This computer's hardware may not support booting to this disk. Ensure the disk's controller is enabled in the computer's BIOS menu". However, when I press the Next button, Windows installs on the Primary partition!?

What the?
So this time, I went back into the Intel Matrix RAID setup and deleted the RAID group and created a new RAID5 drive using all 4 2TB drives, resulting in a disk of 5500GB. My guess is that if break this drive down to 2TB partitions, I can install Windows onto one of them.

DISKPART would not allow me to create any partitions above the 2TB limit, which meant that my drive could have the primary 2TB partition, but could not use the rest of the disk. And it seems that because there is more than 2TB of unused space on the disk, Window just does not like this and will not install.

So what's going on?

:)

 

Trouble installing windows 7 on RAID in UEFI

As the title says, I'm trying to install Windows on a RAID array in uefi on my Maximus V Formula. When using legacy ROM I can install just fine but I go into CSM and change settings to UEFI only, I can build the array in the UEFI Raid driver (IRST tab in "BIOS") but the array does not show up in the boot menu and when I try to install windows (boot from UEFI DVD drive), The drive does not show up in the Windows install. The next thing I tried was to enable UEFI and legacy oprom in CSM, boot from UEFI DVD drive and install to the RAID array (probably detected by legacy oprom) and it will install. After first reboot, Windows Boot manager will show up as an option in the BIOS boot menu so I set that as first boot device and reboot. I will get to the starting windows screen and then BSOD (too quick to get codes) The last thing I tried was Changing to legacy mode and installing windows to a different drive. once installed, I initialized the Raid array as GPT and rebooted, changed csm back to UEFI only but they RAID array still doesn't show in the boot device list so I repeated the earlier process hoping that It might work because I had initialized as GPT but it still BSODs on starting windows screen. Any help or suggestions would be greatly appreciated

 

Need Steps for DIY,UEFI,GPT,TPM Win10 home full version installation

Yeah,I have just done that. I really appreciate your reply. I'll look at continuing specificities as the future continues.
Im sorry,my elluding to the NTFS 'file system' is a bit synonymous to a task I cannot
identify.Having looked through several hundred online pages considering those listed
in the title of my post here at 10forum,I have only still to define the task as singular,
or several.
However when looking at the different 'System Informations',which is what I see,and
what I would like to solve is the consideration of Installation of UEFI Windows10. Not having
the sequence,or priorities of that instruction ,between BIOS settings and installation routine
. I have only the result of my combinatory references. Then the different outcomes between the
'System Informations'seen,before then after the 3rd instalation,and attemptss with BIOS settings.

The Task At Hand:
System Information 1 1st install,different CPU,No TPM,No UEFI.
System Information 3 3rd install,new CPU,TPM,UEFI.

It is possible that I had just not implemented,the UEFI settings within the SuperMicro
Bios here. So that it might be said "'the installation routine of Microsoft is 'perfect'".(I had
gpt to begin with from the first instalation,I just didn't implement the proper settings). There
is not the indicators seen from the 3rd installation from System Information that the installation
for 'that task',for which the task was needed.

I have: Bought New Different CPU
Updated the BIOS Version from the manufacturer
Purchased a separate new Win10 home full version
Purchased a TPM and installed.
Installed Win10 home 3 times

...I might consider the solution as "Set the Installation Media within the BIOS to UEFI
Boot". We are looking at the results,not exactly the same tasks. While I can say that what is seen
within my System Information is now more exceptable. If anybody could better name the task then probably
have as well a better solution. DIY FYI.





....

 

Issues Installing Windows 7 UEFI on Samsung 950 PRO NVMe SSD

How do you do that exactly?

EDIT: I have a copy of the Windows 10 ISO image, do I just simply load it up, create a New partition, restart with my Windows 7 UEFI USB, then install Windows 7?