Problem with Santa Rosa MBP-Unable to Boot

Question

I have a Santa Rosa MBP with the maximum of 4GB of memory.
About 4 months ago I was unable to boot it because there was no video at all. The Genius Bar stated it was a problem with the video in the hardware and kept it for about a week to install a new Logic Board.
I got it back but within a couple days began having new problems. The Wi-Fi would connect but there was no internet on safari, mail, etc. i went to the Apple store again and the Genius Bar was unable to fix it and said it was a problem deep inside the OS. What I did since I had already bought Snow Leopard I did an upgrade from Leopard to Snow Leopard and it solved the problem.
It has worked well the last 3 months or so when my MBP started slowing down. It would sometimes take 10 minutes just to get from the login screen after typing in my password to my desktop where I can use it. Programs would open slow, close slow. My dashboard opens but I can't do anything with it. It has only gotten worse with time and now the computer won't even boot. It gets to the grey Apple with the progress indicator and stays there with the fan running but never goes further.
Fortunately I had done a mirrored backup from Super Duper. I had begun to think it was a hard drive problem. I tried booting from this backup that was made before the problem got very bad and it also runs the same way. I then took this backup to another MBP I have and it worked perfectly. I don't think it's a hard drive problem now. I then thought it may be a memory problem. I used the DVD that came with the MBP to do a hardware test which passed.
I think I have no choice but to go back to the Genius Bar. The problem is with purchasing the additional AppleCare my AppleCare just expired about 3 weeks ago. Yet I know this logic board was put in around 4 months ago and if I'm correct when something like that is done it's often a refurbished board, not new. Either way I had the issue with Wi-Fi just after the replacement and I went back to Apple for it. I think it was related and now this problem. I don't want to have to buy a new MBP but yet I'm convinced all these problems started with the logic board replacement.
Do any of you have other ideas of what the problem could be? Is it possible something I could fix? I have tried a PRAM reset with no luck. Would Apple cover something like this?
Thank you for your help.

Answer 1

Hi,
Looks like partition 2 is set to active after running diskpart script. Here are the details:
DISKPART> list volume
  Volume ###  Ltr  Label        Fs     Type        Size     Status     Info
  Volume 0     C   OSDisk       NTFS   Partition    465 GB  Healthy
  Volume 1                      NTFS   Partition    300 MB  Healthy
  Volume 2     D   Win7_2.1.6_  NTFS   Removable     14 GB  Healthy
DISKPART> select partition 2
Partition 2 is now the selected partition.
DISKPART> detail partition
Partition 2
Type  : 07
Hidden: No
Active: Yes
Offset in Bytes: 499792216064
  Volume ###  Ltr  Label        Fs     Type        Size     Status     Info
* Volume 1                      NTFS   Partition    300 MB  Healthy