Hi, I encrypt my system disk with Bitlocker. I used usb as opening option. But i also printed my recovery key. I checked last screen as i found here 
Then i restart my PC. My usb not worked..then i tried to enter recovery code, and that does not work either. I don't know what to do now, i don't want to reset my hard drive and i think its is not encrypted, it "only" has some information about checking if encrypted, but i cannot bypass it. Also cannot found any information about my situation.
Thank you so much :)