1. Start regedit from the command prompt
  2. Navigate to:

\\HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer

  1. Locate the RPEnabled key and set it to Zero
  2. Alternativelly you can download the following reg file and double-click on it.

After disabling the Metro GUI you can get it back every time by restoring the key value to “1″ or:

  • Pressing the Windows Key + Click on the Start Button (Windows Logo)

or

  • doing a mouse click on the bottom/left Start Button

I’m assuming that you installed Windows XP on 1st disk and the OSX86 on a separate disk (2nd disk)

Here we go…

Getting the chain0 file from your OSX86
- Put a memory stick in the PC and boot OSX86
- In OSX86 start terminal and type:
cp /usr/standalone/i386/chain0 /Volumes/[MemoryStickName]/

chain0 is a 512 bytes file containing the Darwin boot sector

Placing the chain0 file to the root of your XP boot partition
- Reboot to Windows XP
- Be sure to copy the chain0 file from the memory stick to root of the Windows XP boot partition (usually C:\)

Editing boot.ini file
- Click-Right on My Computer, then Properties, Advanced, Start Up and Recovery and then Settings
- In the Startup and Recovery page, press the Edit button
- Add the following line to the boot.ini
C:\chain0="Mac OS X"
- Save boot.ini and reboot

On the boot screen you should have another option to boot OSX. Select it and press Enter.

The PC should boot OSX86.

It works very precise and smooth. Here is a sample video on my Acer Aspire Revo.

Details about how-to-do-it here.