deleted the bek file by mistake now i cin't use usb

hi, do you use USB instead of TPM?Regards George www.supportweblog.com

Sir, you can restore your system to the last point to restore this file. RegardsMCP | MCTS | MCITP

You can get the bek file again if you are able to login to windows. Once inside windows, use the manage-bde command. >manage-bde -protectors -add c: -rk f:\ where C is the OS volume which is encrypted and F is the USB drive where you want the bek file on usb device.Manoj Sehgal

Hi, How is this issue going currently? If the issue persists, please let us know more details about this issue. In addition, please see if the method in the following post is helpful: Scenario 16: Using the BitLocker Repair Tool to Recover a Drive http://technet.microsoft.com/en-us/library/ee523219(WS.10).aspx How to regenerate the BitLocker Numerical Recovery Password http://blogs.technet.com/b/arnaud_jumelet/archive/2010/11/12/how-to-regenerate-the-bitlocker-numerical-recovery-password.aspx Thanks. Nicholas Li - MSFT Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.