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Windows Bootcamp Install Hangs On Boot

therealdeal

therealdeal

macrumors member
Original poster
Aug 1, 2010
53
0
Oklahoma, USA
2010 MacBook Pro 13'
Mac OS X Snow Leopard 10.6.4
Windows 7 Ultimate x64
Bootcamp 3.0.2

I'm trying to install Windows on my computer, and the install works fine, with no issues. On my very first boot into the desktop, everything looks OK. But when I reboot Windows, it freezes on "Installing device driver..." and then I have to press the power button to turn the computer off. I noticed that the device driver it's trying to install is "IEEE 1394". Then, when I restart my computer it freezes on the "Welcome" screen and I have to restart, only to be met with the same "Welcome" screen freeze every time. I have tried all 3 different "Safe Mode" options, burned several different Windows install discs and tried to repair my Windows install using the Windows DVD, but the repair program says that my Windows version isn't compatible with the disc version, even though it's the one I originally installed it with. I even saw in one thread that a guy fixed this same exact problem on his Mac by pressing the power button in anticipation just before the freeze. I tried that solution many times and it didn't work either. I also saw on another website some console commands I can use to try and resolve my issue, but if I cannot access a console, how am I supposed to use it?! I noticed that "Loading Driver C:\System32\DRIVERS\CLASSPNP.SYS" hangs for quite some time before loading the welcome screen and crashing there. A few times I even notice that it would freeze on that process itself. Either way, I can't get into Windows.

I've tried every solution I could find, and none of them worked at all. I'm really mad and sad right now because this is so frustrating. I just want to be able to get Windows on there so I can play my favorite games, use Office and work in Visual C++ Express Edition. :( :mad: :confused:

Please help me guys...
Thanks in advance (hopefully)...

-- Andrew
 
Have you tried formatting a reinstalling Windows 7 again? I take it that there's nothing on the system to begin with so there's nothing to lose.

Apparently, Classpnp.sys is related to SCSI and this hanging can occur if a critical system file got corrupted.

EDIT: Scratch that, the fact that you've had the problem before and after installing Boot Camp drivers suggests that you actually have tried a reinstallation.
 
Grannyville7989 said:
Have you tried formatting a reinstalling Windows 7 again? I take it that there's nothing on the system to begin with so there's nothing to lose.

Apparently, Classpnp.sys is related to SCSI and this hanging can occur if a critical system file got corrupted.

EDIT: Scratch that, the fact that you've had the problem before and after installing Boot Camp drivers suggests that you actually have tried a reinstallation.
Click to expand...

I've tried reinstalling so many times I've lost count. :(
 
therealdeal said:
I noticed that the device driver it's trying to install is "IEEE 1394".
Click to expand...
1394 is the generic name for FireWire. If you don't have any FW devices, you may just wish to disable your Mac's FW adapter in Device Manager.

When it starts with "installing device driver" you should be able to stop it and disable 1394.

B
 
@balaw
I can't boot into the system to use device manager to begin with
EDIT: Do you mean I should try another reinstall?

@roadbloc
No, I want to use all 4 GiB of my RAM.
 
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Yes, reinstall but stop it from installing the 1394 driver, then disable it.

B
 
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