Cannot boot from CD in new Dell 3847 w/Windows 10 Home

Dell 3847 Inspiron with Windows 10 Home OS. I can change the BIOS to boot from ODD as the primary but system still boots to Windows. Dell support had me update chipset drivers but no luck. After an hour of trial and error they then wanted to transfer me to someone that I had to pay for support. I gave up.

I have CD to clone my drive and it works in 3 other Dell PCs I have so I know the CD is good. There are options in the BIOS I've never seen such as Security Boot Control (disabled), Load Legacy OPROM (enabled), Boot Mode (EUFI), etc. First boot device is set to Internal ODD Devices and second boot device is set to EUFI: Windows Boot Manger.

The CD/DVD drive in the PC is good as it'll recognize any CD I put in there after Windows boots, so Windows recognizes it.

Any trick to getting this PC to boot to the CD so I can try to clone the factory hard disk to an SDD unit?

Thanks

Advanced Startup Options - Boot to in Windows 10 - Windows 10 Forums

"Use a device" option.

If you use Macrium Reflect Free to clone and/or image your drive you don't have to use an external boot media.

One method if you have a USB adapter to connect the SSD to USB and have more than 50% free on your hard drive:
Create an NTFS partition on the blank SSD. Use Macrium Reflect Free to save an image of the entire hard drive (all partitions) onto the SSD. Once the image file is created on the SSD, copy it back to the Hard Drive. Then delete the partition on the SSD and restore the image now saved on the hard drive to it. Imaging has proven to work better then cloning, at least with Macrium Reflect.

dalchina said:

Hi, your PC is using UEFI; is your CD UEFI compatible?
What you are seeing is exactly what happens if you use a non-UEFI CD with a UEFI based system.
You say it works on other PCs - do those use UEFI or traditional BIOS?

If your CD is not UEFI compatible, you should be able to boot from it with your UEFI PC if you can select CSM mode (legacy boot) in your BIOS.

But note you'd need to set it back again to boot your PC normally.

Better solution: get an updated version of the CD

Example:
How to Fix Issue Booting to DVD/CD with New UEFI BIOS Boot Order - YouTube

That's kind of what I though. Seems I'd run into compatibility with legacy vs. something or other in the past on a new machine and changing it to legacy would allow the PC to boot. I'm wondering if I can get it to boot with legacy settings, after cloning the drive will the new drive need to have the BIOS reset to UEFI? I'm thinking it will. The YouTube video looks like that'll help - just have to remember what settings I change so I can set them back again. If not I'll see about getting a newer version of the CD that'll boot to UEFI.

Thanks for the leads...