You're welcome. While they are looking into this and working on a possible patch to release it has been advised to use a flash drive without the Win 8 compatible logo. Or choose DVD instead. There has been confirmation on the other thread that non-Win 8 logo'd drive does work.
http://h30434.www3.hp.com/t5/Desktop-Operating-Systems-e-g-Windows-8-Software-Recovery/OS-Recovery-HP-Recovery-Manager/td-p/2235683/page/5