We recently bought an Asus S400C notebook for a client that needed to be configured with Windows 8.1 and secured with Bitlocker. After upgrading from Windows 8 to 8.1 we ran in to the following problem…

PROBLEM: After enabling Bitlocker and booting with the encryption key on a USB key we can’t get into windows. It sticks at the boot screen saying “Preparing Automatic Repair”. If you remove the USB stick it goes straight to the bitlocker screen giving you the option to enter the recovery code or reboot.

SOLUTION: Go into the BIOS and disable the “FAST BOOT” option.