Fujitsu HD MJA2250BH G2 BSOD 0x00000f4

Recently purchased my laptop from a usually reliable source. PCSpecialists.com

Specs.

Chassis & Display
Enigma III 540: 15.6" Matte HD LED Widescreen (1366x768)
Processor (CPU)
Intel® Core™i5 Dual Core Mobile Processor i5 2450m (2.50GHz) 3MB
Memory (RAM)
4GB SAMSUNG 1333MHz SODIMM DDR3 MEMORY (1 x 4GB)
Graphics Card
nVIDIA® GeForce® GT 540M - 2GB DDR3 Video RAM - DirectX® 11
Memory - 1st Hard Disk
250GB SERIAL ATA II 2.5" HARD DRIVE WITH 8MB CACHE (5,400rpm)
1st DVD/BLU-RAY Drive
8x SATA DVD±R/RW/Dual Layer (+ 24x CD-RW)
Memory Card Reader
Integrated 3 in 1 Memory Card Reader (SD, MMC, MS)
Sound Card
Intel 2 Channel High Definition Audio + MIC/Headphone Jack
Network Facilities
ENIGMA GIGABIT LAN & WIRELESS 802.11N + BLUETOOTH 3.0
USB Options
1 x USB 3.0 PORT + 2 x USB 2.0 PORTS AS STANDARD

It's been working on & off for two weeks. Ive installed two differant copy's of Windows 7, both have reported the same errors codes. 0x00000f4 & 0x000007a.

My brother also bought the same laptop a week after i got mine. His has worked perfectly fine, this annoyed me so i checked so see if any of his hardware was differant. As i gussed he had a differant brand of HD ( SeaGate).
I've contacted the manufacturer but currently still waiting for a response.

Ahhh, just as i was writing this my laptop has BSOD with this code "STOP: c000021A {FATAL SYSTEM ERROR} The verification of a knownDLL failed. system process terminated unexpectedly with a status of 0xc0000020 (0x038c5010 0x00000000)
The system has been shutdown.

This is frustrating, was looking forward to moving on from my 7" netbook.
Any help on how to possibly solve my problems would be hugely appreciated.

I've never used a forum to find answers before :shock: so if you need anymore info please ask and i will do my best to post is asap.

I would post dump files but i cannot boot in windows 7 to get them:sarc:

Update. Running a Mem Test.
Update. 3x Passes with no errors.

Running Seatools on HD.

Since the laptop is fairly new, you should try to backup any important files and return to the factory image. Maybe you just had a bad setup from the beginning that can be corrected using the factory image. Wait, I do not see an option to use a factory image from your manufacturer... Do you have that option?