Strange error after installing new HDD

Hi. This is my first post here, so if it's in the wrong section, please tell me.

Recently one of my HDDs (E: drive) was full, so I called my manufacturers support senter and they helped me buy a new HDD with 1,5 terrabytes instead of the 750GBs I had on the old one.

I replaced it with the old HDD without any problems, but they ocurred when I tried to start it up.
This is the error I recieved:
"Intel(r) Boot Agent GE v1.3.65
copyright etc

Client mac addr: blabla GUID blabla
CLIENT IP blabla MASK blala DHCP IP: blabla
GATEWAY IP blabla
PXE-E76: Bad or missing multicast discovery address

PXE-MOF: Exiting Intel Boot Agent."
I believe the text highlighted in red is my problem. After searching google I've tried to change my boot settings in the BIOS menu. Right now it's restored to default as nothing worked.

The laptop I'm using is a one year old version of this one: http://www.multicom.no/Kunshan-P157S...0042/p10629336

Some of my specs are:
NVIDIA GeForce GTX780M 4GB
8GB RAM
Intel Core i7-4700M
Windows 8.1 (CD: Win8)

Please help, I have approximately 10 gigabytes left on my computer and would like to get more as fast as possible. Also if you need more info, please state what you need to help me.

Best Regards,
Erlend/Drowluv.