How to use NTFS hard drive as boot hard drive for Mac OS X

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A hard drive formatted NTFS and that has Windows on it will never boot on a Mac computer. Apple has made sure of that.

To get Windows on a Mac you must use Boot Camp Assistant program, included with Mac computers located in the Utility folder, to Partition the Mac internal drive and then Install Windows on that partition. Specifically Windows 7 and it must be installed from the Mac DVD drive.

BootCamp alters the boot sector of the Mac to have a bootable NTFS partition. It actually makes a partition in FAT that needs to be formatted by the Windows install process as NTFS. Then you can boot into that partition using the option key at startup.

Maybe the other poster missed your first post. You will never get a Mac to boot Windows from an external hard drive.

Two reasons.

1) Windows can not Boot from an external drive, even on a Windows PC. The drive Must be Installed Inside the computer (and or made to look like it is physically installed inside the computer).

2) Mac's will not allow you to boot to Windows unless you use Boot Camp to install it to the internal drive.

Right BUT that is what the OP is asking about (EDIT: IF YOU Actually READ the OPs Post). IE Booting Windows from an External Drive.

He says Nothing about installing Windows. He has a HDD with Windows installed on it and want to Boot from it connect to a Mac externally.

steve359 wrote:

Note my post: alters the boot sector of the Mac to have a bootable NTFS partition

I never mentioned the ability to boot from an external drive.

oy vey

Relax, log off this forum for 5 minutes instead of spending 24 hours a day trying to make level 10 within a year.

If you had read my reply carfeully rather than trying to get some of yours back after Kappy reminded you this is an Apple forum and not a forum to convert people to Windows, you woudl never had made such a mistake.

OSX can't write NTFS drives.

Note my post: alters the boot sector of the Mac to have a bootable NTFS partition

I never mentioned the ability to boot from an external drive.

oy vey