Here's the guide in order to have a successful dual booting Windows 8.1 and CentOS 6.4.
First, you need to download EasyBCD Software, this software is developed by NeoSmart Technologies to configure and tweak BCD (Boot Configuration Data). You can download at their site
neosmart.net.
For me, I downloaded a torrent
here. Then install it.
After the installation, run the application in Administrator just in case.
In my case I already installed the CentOS.
First thing to do, click the
BCD Backup/Repair on left menu and click
Backup Settings.
