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Running Windows (or anything else) on your Mac Discussion of Classic or running Windows, Linux and other OSes on the Mac.

Problems booting Windows7.....


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declan0872

 
Member Since: Dec 04, 2010
Posts: 4
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Hi all,
A couple of weeks ago i installed windows 7 home premium on my macbook white (2010),
It worked very well at first, all i really used it for was programming in Microsoft Visual Studio 2010, but then it would refuse to boot up giving me various different problems and then told me to contact the system administrator...

Anyone have any ideas how to fix this? Please have a look at the pics at the bottom of the page...
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Buzzard2010

 
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Member Since: Oct 22, 2010
Location: Sheffield, UK
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Usually this kind of thing happens when the MBR (Master Boot Record) gets corrupted. It's a file at the beginning of the partition telling the computer where the system files, partition etc start.
This might work for you: (although with something like this, if you have nothing you need on the windows partition I would reformat it and install again through bootcamp).

1
Insert Win 7 installation DVD and boot from DVD drive. While in some older systems you may have to change boot order through system BIOS, most newer systems allow booting from DVD without changing boot order by simply clicking on any key when prompted to doing so.

2
Choose your default "Language", "Time", and "keyboard Input" on the first window and click next.

3
You're now presented with 3 choices. Click on "Repair Your Computer" to gain access to the System Recovery window. Now choose "Command Prompt" in order to run the desired utility which is called "bootsect.exe". Bootsect is located inside the boot folder so change your directory to boot. Now run "bootsect /nt60 C" if you had Win 7 initially installed in the C partition. Alternatively, you can run "bootsect /nt60 SYS" or "bootsect /nt60 ALL" to repair the system partition or all partitions. Eject the DVD, and restart computer. Your computer should now boot Win 7 again.

If this works you may have to insert your osx disc and run disk utility > repair disk so you get the osx option available afterwards aswell

- Simon


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May 2011
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declan0872

 
Member Since: Dec 04, 2010
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Hi Buzzard2010,
Thanks for your reply,

I ran diagnostic of my bootcamp with rEFlt and the results are below..
With these results, do you think that i should follow your instructions from the previous post or what?


*** Report for internal hard disk ***

Current GPT partition table:
# Start LBA End LBA Type
1 40 409639 EFI System (FAT)
2 409640 403062823 Mac OS X HFS+
3 403326976 488396799 Basic Data

Current MBR partition table:
# A Start LBA End LBA Type
1 1 409639 ee EFI Protective
2 409640 403062823 af Mac OS X HFS+
3 * 403326976 488396799 07 NTFS/HPFS

MBR contents:
Boot Code: Unknown, but bootable

Partition at LBA 40:
Boot Code: None (Non-system disk message)
File System: FAT32
Listed in GPT as partition 1, type EFI System (FAT)

Partition at LBA 409640:
Boot Code: None
File System: HFS Extended (HFS+)
Listed in GPT as partition 2, type Mac OS X HFS+
Listed in MBR as partition 2, type af Mac OS X HFS+

Partition at LBA 403326976:
Boot Code: Windows BOOTMGR (Vista)
File System: NTFS
Listed in GPT as partition 3, type Basic Data
Listed in MBR as partition 3, type 07 NTFS/HPFS, active
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Buzzard2010

 
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Yeah this just means the osx side if things can recognise which is which, unfortunately it dosn't mean the vista side does.
Try my suggestion, worst case scenario is you have to repair OSX boot files which disk utility can do very well.

- Simon


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May 2011
Nominated: March 2011 & April 2011
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DaFlake

 
Member Since: Jun 02, 2008
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I have had this happen before and nothing repaired it... Sadly it was a full reinstall that was needed.
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