Unable to install OS

[Karthik Saxena]

Hello Everyone
Initially, I had windows 8 and backtrack 5r in my boot manager. I used mini tool to delete these OSes and install only RedHat but i didn't get success as i was getting a partition error in that after that I thought to install the linux mint distro but same error was there too. So unable to install any OS and my system gone in grub rescue window. I don't what to do at this stage as now there is no OS in my PC and it is in grub rescue situation and one more thing the BIOS is also not opening that's why i can't change my Boot order. Please if anyone can fix this please help me.
My motherboard is of Simmtronics
Hard drive WesternDigital.

 

[g-unit1111]

Windows 8 can be a bit tricky to install. What you need to do is to delete every partition on your primary boot drive, and set your primary boot drive to SATA-0 on your motherboard, and then when you go to install, do a quick format of your entire drive, and then let Windows 8.1 install automatically, it will do all the rest of the formatting for you.