09-15-2016 02:24 AM
09-15-2016 02:46 AM - edited 09-15-2016 02:48 AM
CDs, generally speaking, are not bootable. You probably mean DVD media instead.
What type of "external cd" device are you using and how is it connected to the notebook?
What kind of media are you using and what is on the media?
What do you mean by the following statement? "delete all legacy boot key"
Post any other questions you have in your thread.
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09-15-2016 02:41 PM
Problem solved u just have to turn to disable all possible "legacy" option in bios boot option then u can just change boot option as u want even to usb. BTW worst idea ever to secure it that way to someone that didnt know anything about bios and want to change boot device this will be horror for ex. in my asus notebook i just have to change boot order no any secure lock why do i ever need it mannn.... ANYWAY thx for try but problem is solved topic can be closed.