Installing MAC OSX Yosemite after Windows 8.1 ?

[DreamWeaverQC]

Is it possible to install MAC OSX without formating my drive with already Windows 8.1 on it ? Or I will need to format my drive and make a new installation for both ?

Thanks a lot guys

Dream

 

[Kazbah]

You need a HFS+partition to install OS X. You will need to resize your Windows partition

http://www.howtogeek.com/howto/windows-vista/resize-a-partition-for-free-in-windows-vista/

I do not know if you need anything else when using Unibeast or MultiBeast as I am using Ozmosis.

Also things might differ if your current drive is partitionned GPT or MBR