I followed all the instructions for building WinPE disk with Boot Media Builder and it seems to have run flawlessly from beginning to end. When I check using the in File>Check recovery Disk I immediately get a not bootable disk that is red X'd. When I use the disk I get a light blue screen (not BSOB) and it just stops. I dl'd the proper Win 8.1 Assessment and Deployment Kit. What am I doing wrong? Thanks in advance.