When I boot my PC it start with 2 options
Windows 7
or
Symantec
After the first boot of windows 8 installation there is 4 choices
Windows8
Windows 8 installation
Windows 7
Symantec
(none of these worked, I had to figure out how to make it work so I selected windows 7 and hited CTRL + ALT + DELETE and it said Windows 8 could not complete, both times)
(I walways asked a pro to set it this way so I don't screw everything up)
There's something wrong with your MBR (master boot record) What Symantec program are you running that shows up on your boot loader? Is that a Windows Bootloader or a Symantec Bootloader or a 3rd Party Bootloader? I think that Symantec program may be screwing something up.
To be honest, at this point I would just reformat my hard drive and do a new clean installation, rather than spending 100's of hours trying to trouble shoot it.
I also have an AMD laptop running the E-450 APU.
I was dual booting Win7 Pro 64bit and Fedora Linux 17 64bit When i powered my laptop up, it would go to a Grub bootloader and i could select either Win7 or Fedora Linux.
When I upgraded to Win8, I expected Windows to overwrite the MBR and wipe out the Grub bootloader. Every other time I have installed windows 95, XP, Vista, 7, it has written over my MBR and wiped out any Bootloader I had. With Win8 it did not overwrite my MBR. I thought that was really odd. I still have the Grub Bootloader at boot and i can select either Windows or Linux to boot to.