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User profile for user: Dino1956
Dino1956 Author
User level: Level 1
51 points

Bootcamp Windows 7 on iMac Startup Freezes

Ok, so I have tried installing Windows 7 like 10 times & with every install, after doing all Bootcamp Updates & Windows Updates, I get a Frozen Startup at the beginning where it says Windows & the little colored dots start loading. It always freezes right when the dots start loading. I've tried repairing, updating drivers, etc...A lot of times even with hitting the Option Key, it'll just go right to Mac, since Mac is my Default Startup Partition. No black screens, just Startup issues.

iMac 27" 3.06 GHz. ATI 4670 4GB 1TB, Mac OS X (10.6.2)

Posted on Nov 1, 2010 10:44 AM

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5 replies
User profile for user: PSolt
PSolt
User level: Level 1
4 points

Nov 5, 2010 10:13 PM in response to Dino1956

I have two semi-related issues and potential fixes.

1. I have issues booting up when my external monitor's USB hub is plugged into the Macbook Pro. There is an external harddrive attached, which may be the root of the issue. Around 50% of the time it freezes on the boot disk selection screen.

When the boot hangs, I unplug the USB hub, turn the power off/on, and hold alt to bring up the boot selection menu. I've never had an issue booting into Windows when I unplug my USB hub with the external harddrive.

I'm not sure if this update fixed my issue, need to check my EFI: http://support.apple.com/kb/TS3423

2. My computer will freeze randomly in Windows 7 (64bit). I believe the issue is related to the graphics drivers on my GeForce 330m card. There are two options, so far the first one has worked for me.

a. Turn off Aero graphics. Goto: Control Panel\All Control Panel Items\Performance Information and Tools and then on the left click on "Adjust Visual Effects" Select the "Adjust for best Performance" to unselect all options.

b. Update your video drivers to something other than the default Bootcamp video drivers. (Start looking here: http://wilby.com/cameron_blog/?p=118)
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User profile for user: Dino1956
Dino1956 Author
User level: Level 1
51 points

Nov 6, 2010 8:06 AM in response to PSolt

P Solt, Thanks for the Details. I think in my case the Airport Card (Atheros Wireless Network Adapter) is one of my issues. I have it disabled & it Starts Up 70% of the time now. Also it made my audio skip.I will go to that Driver sight in a bit. I have the ATI HD4670 Graphics Card. Also sometimes the Bluetooth Mouse will Freeze Up. I will also try turning off "Aero Graphics". Thanks. Will let you know hhow it goes.
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Bootcamp Windows 7 on iMac Startup Freezes

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