I recently got a new custom pre-built pc and when i first started it up the pc was running fine absolutely no problems and then after a few hours i was playing World Of Warcraft and a blue screen error message came up (BSOD) withing seconds my pc just restarted and now wont start up properly, i get a message saying something about the boot devices not being found.

I have my windows 7 install disk so i went to re-install windows 7 again and that worked but then the same issue happened, before the second time occurred i set up a back up and then an hour or so later the same problem happened. When i put the windows 7 disk in now it wont recognize my main hard drive which is 1TB and i cannot re-install windows or system restore my pc. Its beginning to really frustrate me and its come to the point where i cant play on my pc, so if anyone has a solution this then it will be greatly appreciated.

Specs:
Hard Drive Capacity- 1 TB
Model- G'eb 13
Operating System- Windows 7
MPN- GE-13GPCW7
Operating System Edition- Home Premium
Graphics Processing Type- Integrated/On-Board Graphics
Processor Type- AMD A6 6400K
Graphics Card- Radeon HD 8470D
Processor Speed- 3.90 GHz
Processor Cores- Dual Core
Memory- 8 GB
Memory Speed- 1333 MHz