A laptop i purchased verify recently, seems to have ONLY UEFI boot in the BIOS setings.
Would like to verify from the knowledgeable ones here whether there is any workaround or solution to boot a legacy CD/usb/iso at all?
Thanks
Please open the BIOS and post images into the thread.
In case there are problems posting images use share links: one drive, drop box, or google drive
UEFI most often requires a FAT32 partition for boot.
UEFI with CSM or UEFI hybrid gives more flexibility for booting.
Last edited by zbook; 26 Nov 2020 at 04:55.
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For your current question, you'll need to take screen photos with, say, your phone and then post them.
Apart from tidying them up & cropping them, you might want to look in your graphics application to see if it's easy to export them as jpg and compress them to 50% to make it easier to upload them.
Denis
If you can't find CSM/Legacy in the Boot tab menu in the Bios, you can take your Boot media and open it, select all of the files (including the hidden ones) and drop them into a file on your desktop. You then can create an ISO image of those files using IMGBurn. You then can Burn the ISO image to a USB Flash drive using Rufus. In Rufus, go to Partition Scheme and take the drop down arrow and choose GPT instead of MBR. When it's complete, start with the Flash drive in the computer and it will show up as a bootable UEFI device in the Bios Boot tab
The initial boot media would have to have the proper EFI boot files and folder structure in order to boot in UEFI. MBR v. GPT has nothing to do with booting in UEFI mode.
@perfection,
rEFInd might help you:
The rEFInd Boot Manager
If that is a late 2020 model then no, it is unlikely to have any CSM/Legacy support in its bios. This is by design, as announced three years ago.
Intel Removing Legacy BIOS Support from Motherboard UEFI in 2020Today's computers come with UEFI or the Unified Extensible Firmware Interface, but have included BIOS support for cases where people use software that depends on 16-bit BIOS, which can be enabled though the Compatibility Support Module (CSM).
Intel technical marketing engineer Brian Richardson revealed in a recent presentation that the company will require UEFI Class 3 and above. It will remove legacy BIOS support from its client and datacenter platforms by 2020.
By enforcing UEFI Class 3 it will "break" any customer process that depends on disabling UEFI through CSM.
That's a photo of my boot options
Your Aptio setup version 2.21.1277 is a 2020 version and would appear, as required by Intel, to be UEFI Class 3 or above. This means there is no CSM/legacy support by design. See post #7 for more details.
https://answers.microsoft.com/en-us/...a-09a6cb77918cAptio setup version 2.21.1277. ... It doesn't have a 'secure boot' 'fast boot,' or Csm disable option
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