I already have Windows 8.1 installed; Dual-booting Yosemite and Windows 8.1

Hi, I have a question. In step 4 of the installation guide, it says this:

For a new installation of OS X, you MUST erase and format the destination drive according to the following steps before continuing.

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Code:

Disk ###  Status         Size     Free     Dyn  Gpt
--------  -------------  -------  -------  ---  ---
Disk 0    Online          698 GB   128 GB        *
Disk 1    Online         7681 MB      0 B

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Disk 1 is my USB

So, my question is do I have to clear out Disk 0 completely to be able to dual-boot Windows and OS X?
If not, what steps are required in order to make Windows and OS X boot together?

P.S. Yes, UEFI is enabled on my motherboard
P.S.S. I'm using a laptop, the ASUS R500A (Based on the ASUS K55VM)

Laptop issues are better addressed in the Laptop Forum.

That said, see http://www.tonymacx86.com/multi-booting/133940-mavericks-windows-8-same-drive-without-erasing.html for some of the issues involved in dual booting OS X and Win8 on the same HDD/SSD

Going Bald said:

Laptop issues are better addressed in the Laptop Forum.

That said, see http://www.tonymacx86.com/multi-booting/133940-mavericks-windows-8-same-drive-without-erasing.html for some of the issues involved in dual booting OS X and Win8 on the same HDD/SSD

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It actually worked . Right now I'm patching DSDTs

glitchypixel said:

It actually worked . Right now I'm patching DSDTs

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Which I'm not saying is easy (4 reinstalls so far, on my 5th one)...

glitchypixel said:

Which I'm not saying is easy (4 reinstalls so far, on my 5th one)...

Click to expand...

Why are you re-installing? If DSDT patching fails just boot with -x DSDT=Null and then delete the failed DSDT from /Extra and start again.

or you could boot single user mode -s and use terminal command
rm /Volumes/Yosemite/Extra/DSDT.aml
assuming your drive name is Yosemite