If your laptop boots in EUFI mode but the SSD does not have a GPT, it can't find any partitions to boot from. Changes are the disk has an old style MBR (Master Boot Record), or no partition at all. Or the other way around: the BIOS boots in legacy mode and the SSD has a GPT and a dummy MBR.
To fix this, you must boot from an external media (USB stick, CDROM) with a Linux or Windows system and create the partition table (Windows parlance is 'initialize the disk'). Or, mount the SSD temporarely in an external USB housing, hook it up to a working system and create the proper partition table there.
On Windows 8, go to Control Panel, Administrative Tools, Computer Management (run as Administrator). In Storage Management go to Disk Management and select your external harddisk there. There you should be able to create a GPT or MBR partition.
I'd wait with BIOS updates until nothing else works.