Just installed Dual-Boot Ubuntu 13.04 on my self-built Windows 8 Pro PC, and after the installation I restarted, and once I was prompted with Grub 2.0 I tried to boot off of windows 8, and a few seconds after I selected the OS it would restart my computer entirely. I am clueless when it comes to Linux entirely as I am a gamer and video editor it is not the best option for my needs, but all of my friends have been telling me to dual-boot so I did. I am very afraid of loosing all of my data on my hard drive and such because a large portion of my job is done on that hard drive.
System Processor: Intel Core Duo 6700 2.66 Ghz
System DRAM: 8GB DDR2 DRAM
Graphics Processor: Sapphire AMD 5570 1GB GDDR3
Motherboard: ABit AB9 Pro
Storage: 1TB Western Digital Caviar Green, 500GB, 80GB