UEFI and Backups/Restore when on Windows 7 (from 8)

I have a recently purchase Dell XPS 8500 based on UEFI spec with came equipped with Windows 8... but I am now on Windows 7 and have UEFI related some questions.

First some quick background and I am in transition between Windows 8 and Windows 7 ....let me explain.

INTIIAL SETUP (Win 8) - My factory equipped windows 8 hard drive failed under warranty. A Dell tech is coming tomorrow to replace it. I have no current plans to use Windows8, but want to preserve what I will have - kind of like an extra backup, fully recognizing that the Win 8 license key is tied to the BIOS). So, when the tech leaves, I will be removing the new wokring drive and keeping safely on the shelf, for possible future use in this machine. All good.

NEW SETUP (Win 7) - In its place I am installing a licensed Windows 7 setup (one that I have been testing with all week on this machine and activated on this machine- one bootable Windows 7 drive and one internal data drive. So I know this works fine. Again all good.

Now for my UEFI question...

To get to the NEW SETUP (Win 7) from scratch, I removed all drives, and only connected a single brand new drive. I booted from a WIn 7 install DVD.... but it would not boot to the DVD. I assumed it was simply that I didnt set the BIOS to boot from the DVD, so I changed everything to legacy, and set the DVD as the first boot device. But it still would not boot. Finally I could only get it to boot fine by using the BIOS setting attached. I did my install of Win 7 , and all is good. I can boot to the bootable drive no probem....but thinking ahead to my next failure...

a) Am I going to get in trouble now with creating Win 7 system images ( with windows 7 backup and restore) and later needing to restore them ?? . I ask only becuase some users have posted issue with thier UEFi machines on WIndows7

b) Am I going to get in trouble if attempting to boot from a Windows 7 revovery CD?

The irony here was that I was trying to SIMPLIFY my life. I was simply wanting to replace an old old machne - got me the 8500 ... which came with Windows 8 (INITIAL SETUP) .... which I hated so much after two months I went back to 7 (NEW SETUP). All is fine now, but it has occred to me that I haven't yet had any Win 7 failures on this UEFI system.... hence my questions....

When booting a Windows 7/8 install DVD or Windows 7/8 Repair CD, you need to boot in UEFI mode.

ok, so are you saying:
- given that my BIOS setting is already set for Bootmode = UEFI,
- and given that I installed Win 7 from that point on
- and given that I created system images and recovery CD's etc from that point on

...I can therefore leave it as it is, and forget about it, and not be concerend about it?

ok, so are you saying:
- given that my BIOS setting is already set for Bootmode = UEFI,

Some uEFI/BIOS firmware are set to UEFI only, or UEFI & Legacy.

Be sure you are booting in UEFI mode.

If you're still referring to the WIn7 which you thought you installed in Legacy BIOS mode, it appears not to have done so as it is booting via the UEFI Boot Manager. So there must be another setting for Legacy BIOS to reinstall in Legacy Mode, or you'd want to boot the installer using that Internal ODD choice being sure that you install to an MBR disk.

However the technician is going to turn back on Secure Boot and disable Legacy BIOS to reinstall Win8 so you can perhaps query him about how you'd fully enable Legacy Mode to install normally to an MBR disk.

Let me ask it this way.

Per my original pic , it is currently set to and booting via the UEFI Boot Manager right now. Per the orignal pic posted, it actualy says
Legacy OPROM = Enabled
Boot Mode = UEFI

My Disk Manager shows the hidden drive as "Healthy (EFI System Partition)"

So I dont really know how to interpret this as meaning I am in UEFI mode or Legacy mode... but everything is currently working and booting fine

I guess all I am just seeking here from the gurus, is some sort of confirmation that:
- the setup I now have is OK, and
- that I should not have any issues if one day I need to boot from a CD to rebuild from images
- I can leave good enough alone and there is no need to reisntall WIndows 7 right now.

It seems your Win7 is installed UEFI mode as shown here: UEFI (Unified Extensible Firmware Interface) - Install Windows 7 with - Windows 7 Forums.

This is fine and will be the same way Win8 is installed, except Factory image will likely require Secure Boot which will cut out Win7 until you turn it off.

There must be other Legacy BIOS settings there for you to enable in order to install normally to an MBR disk. What choices are given for Legacy BIOS? Do you have another setting elsewhere for Compatibility Support Module which can often be set to Dual mode?

Legacy BIOS setting are only need to use Out Dated OS's & Bootable software CD's.

theog said:

Legacy BIOS setting are only need to use Out Dated OS's & Bootable software CD's.

..which begs the question:

- is Win 7 considered a "outdated OS"
- is a Win 7 sys repair cd considered a "bootable software Cd"

Hope its no to both, and as stated earlier, I will be fine with UEFI in a Windows 7 seup.