this isn't a password issue so much as an inability to boot from the desired device.
Try reposting this using the 'Ask a Question' button. The 'Discussion' forum is for matters of general discussion, not specific problems in search of a solution. Don't even mention the password problem, just that you can't boot from a USB drive or CD / DVD.
There are TR members who specifically seek out problems in need of a solution. Although there is some overlap between the two forums, you'll find more of those members in 'Questions' than here in 'Discussions'.
Additional benefits to the membership include:
1) The "Questions" forum provides for your feedback, by way of your being able to mark "helpful" responses as such. This does not necessarily mean that a given response contained the complete solution to your problem, but only that it served to guide you toward it. This is intended to serve as an aid to those who may in the future have a problem similar to yours, so that they might have a ready source of reference available, thereby perhaps obviating the need for them to repeat questions previously asked and answered.
2) The TR search function makes it difficult to find a particular "Discussion" or "Question" if it has not had a recent post; the two types get mingled in the listings. By keeping each type in their respective forums, it is easier for all to find what they are looking for.
