NexTech

I've assumed you have a Windows 8 /8.1 DVD or USB and a Lion/ML/Mavericks DVD OR USB (Niresh Distro's)

Part One - Operating Systems Installation
1. Install Windows 8.1, during in the installation, create two partition, one for Windows 8.1 and one for Mavericks.
2. After installed windows 8.1, insert Mavericks installation media and install.
3. During the installation, create a new partition with the Disk Utility (The one you didn't use for Windows) and format it into MAC Journaled. Then, install Mavericks and boot to desktop.

*If you didn't install a bootloader to disk, install Chameleon now. It will install as an application. If it's not installed, then boot it with your installation media.

Part Two - Configuring Boot Options

Windows
Now you cannot boot into Windows 8.1. No problem.

• Reboot and insert the windows 8.1 DVD or USB.
• Click next and select repair at the bottom left
• Select command prompt and type in:

diskpart
list disk
select disk 0 [Normally your one disk with two partitions, Windows and Mac. If  you see three, Don't panic, system reserved is where the windows 8.1 boot location is]
select partition [Select the system reserved partition (very important, its around 350 MB)]
active [set selected partition as active]
exit [exit the diskpart program. (You could also do a startup repair)]

Now close the command prompt and repair the computer (First option). Once repaired, you will boot into Windows. Windows is now fixed.
You can use EasyBCD to Dual or triple boot using windows as Main OS) [Optional]
1.Rename your hard drive in my computer to Windows (You will see why later.)
2.But you cant boot back into mac? Once you are back in windows click start >type cmd>enter.
3.Type and press enter after each line

diskpart
select partition [Select MAC partition (it won't show the names but you can differentiate from the sizes of the partition]
active
exit

Restart now and Chameleon should come up with 3 options. (System Reserved,  Windows,  Mac)
4.Press System Reserved to boot to windows, and Mac to boot to Mac to fix. Just two options, Windows or Mac.

*Do not rename System Reserved at all. You'll mess up the booting of Windows.

MAC
1.Boot to MAC.
2.Go to Finder>Extras>org.chameleon.boot.plist (copy this file to desktop AND make a back up copy somewhere)
3.Edit the "org.chameleon.boot.plist" in the desktop by right clicking and opening with text edit application

4.Add the commands below:

Rename Partition"System Reserved" Windows 8.1

5.To hide useless windows 8.1 hard drive:

Hide Partition"Windows"

6.Once it's done, save it and copy it back to where the original "org.chameleon.boot.plist" is.
7.Reboot! and you can now dual boot and select between Windows 8.1 and Mavericks.

Tips: Before you proceed OS X installation, use fdisk from Terminal to mark your target partition for OS X as active. It doesn't break your Windows 7 and at the same time you can continue using Chameleon to boot your machine.