My bios does support it. I checked and it said "USB HDD" which means USB Hard Disk Drive. I ued Acronis Easy Migrate. I copied partition C (the HD in my laptop) to my External which I believe is E. I booted up from the External and I got a blue screen error and it comes on for about 1/2 second, and it restarts. It does the same thing over and over again. What am I doing wrong???