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Windows 7: Cannot boot from a bootable CD through USB

24 Oct 2015   #1
KarolR

Microsoft Windows 7 Professional 64-bit 7601 Multiprocessor Free Service Pack 1
 
 
Cannot boot from a bootable CD through USB

I can't boot from a separate CD that is connected with USB to too laptops: DELL running WIN 8.1 and a Lenovo S400 running WIN 7. i tested the CD in an old XP machine with an internal CD and it worked.
I think once my DELL booted from an other bootable CD using USB but i am not 100% sure.
I set the BIOS on the Lenovo to enable boot from USB. there aren't many devices to choose from in the Lenovo BIOS, only 2: the hard drive and to boot from network.
Both computers booted from the internal hard drive.
How do i make a screen shot of the BIOS?
thanks


My System SpecsSystem Spec
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24 Oct 2015   #2
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

You can't make a screen shot of bios. You must use a camera and then post them.
My System SpecsSystem Spec
25 Oct 2015   #3
KarolR

Microsoft Windows 7 Professional 64-bit 7601 Multiprocessor Free Service Pack 1
 
 

I uploaded the snapshot of the Lenovo S400 with WIN 7


Attached Thumbnails
Cannot boot from a bootable CD through USB-dscf8378.jpg  
My System SpecsSystem Spec
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25 Oct 2015   #4
derekimo

Microsoft Community Contributor Award Recipient

 
 

Is the USB plugged in when you took that picture?

If not, plug it in, if it is, try a different port, USB 2 preferably.

Here's the info on your one time boot menu option,

Cannot boot from a bootable CD through USB-2015-10-25_00h40_00.png

http://www.lenovo.com/shop/americas/...s300_ug_en.pdf


My System SpecsSystem Spec
01 Nov 2015   #5
KarolR

Microsoft Windows 7 Professional 64-bit 7601 Multiprocessor Free Service Pack 1
 
 

It worked for the Lenovo but the Dell doesn't boot from USB CD. i attach both pictures, the BIOS and the boot menu.
There is a line in the BIOS setup: USB Storage Device. this line disappears in the boot menu, as you can see in the pictures.
What does the last line in the Boot menu mean: Boot List Option [Legacy]?
And what happens if i change the value from legacy to something else? i tried but was afraid because there was a severe warning.


Attached Thumbnails
Cannot boot from a bootable CD through USB-bios-boot-menu.jpg   Cannot boot from a bootable CD through USB-boot-menu.jpg  
My System SpecsSystem Spec
03 Nov 2015   #6
KarolR

Microsoft Windows 7 Professional 64-bit 7601 Multiprocessor Free Service Pack 1
 
 

Is the USB CD recognized as CD/DVD/CD-RW Drive or as a USB Storage Device?
My System SpecsSystem Spec
04 Nov 2015   #7
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

I know nothing about Lenovo bios.

To the best of my memory any thing attached using USB port will be recognized as a USB device.

Why do use USB to hook up a DVD player? A optical Drive should be used internal with a desktop and hooked to a sata port on the motherboard.
My System SpecsSystem Spec
04 Nov 2015   #8
KarolR

Microsoft Windows 7 Professional 64-bit 7601 Multiprocessor Free Service Pack 1
 
 

The pictures here are of a Dell laptop, not a Lenovo. the problem with the Lenovo was solved, thanks to your help.
I don't have an internal CD in my laptop, so i connect a USB CD.
My System SpecsSystem Spec
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 Cannot boot from a bootable CD through USB




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