I have just purchased an Envy-4 ultrabook and am trying to create recovery media. I have purchased a 32Gb SanDisk Cruzer flash drive for this purpose and although Windows can see the drive and I can add/delete files, Recovery Manager just sits there waiting for the drive.
Is there a known problem with particular makes of flash drive? - I don't have a need for a large collection of 32Gb drives so don't want to keep buying them until I find one that works!
(I may not be the only person with this problem - see http://h30434.www3.hp.com/t5/Desktop-Operating-Systems-e-g-Windows-8-Software-Recovery/Hp-recovery-manager-won-t-recognize-my-flash-drive/td-p/2861679 which has had over 100 views).