Windows not booting and only recognizing hardrive sometimes

Yesterday i was downloading updates through MSI Live Updates 5 and updating Windows Vista for my new computer and i decided to play a game to kill time but then my computer stop responding and out of frustration I shut the computer off the wrong way (just hitting the power switch). When I booted the computer i got "Reboot and select proper Boot Device or Insert Boot media in Selected Boot device and press as key". After rebooting a few times and still get the same message a new message appeared "A disk read error occurred Press ctrl + Alt + Del to Restart". My computer is now in a loop when i boot, i restart, get the message, restart, get the same message. I put in the Windows Vista disc to try a system repair and then i noticed that my C: drive was not there. The Windows disc wast not recognizing my hard drive. I narrowed my problem down to my hard drive as my computer was not recognizing my western digital hard drive. I go check the BIOS and my BIOS recognizes the hard drive. I try the windows recovery one more time but still no C: drive is found. So I go back into the BIOS and my hard disk was not being recognized this time.....weird. I panic and open up my computer and unplug and plug my hard drive back up. I boot up my computer and my hard drive is now recognized in the BIOS this time. I download a flash update to USB to update my BIOS as i read updating the BIOS could fix the problem and while updating I notice my hard drive wasnt recognized, wow. I open my computer and switch the SATA cords from my CD drive and switch SATA1 and 2 ports. I boot up my computer and my hard drive is recognized again. I restart to double check and lo and behold my hard drive is not detected in my BIOS. The thing is my CD drive is always being detected even when i switch back and forth between the two SATA cables and ports! I downloaded Western Digital Lifeguard Diagnostics to run boot test on my hard drive and my hard disk wasnt found the first time so i unplug my hardrive and plug it back in and reboot. Western Digital Diagnostics detects my hard drive..... I do a test but get an error Code 0134. Code 0134 means the hard drive wasnt responding on time and it may be due to a defect with the drive or a bad connection. So im here now frustrated and confused. I might have a faulty hard drive but i just dont know because everything was working the first day. I look online (on my other computer) about the "disk read error occurred" message and so many people have had this problem and for different reasons.

I've had the computer running for three days as of today. The first day everything was all good, no hard drive problems, there was a problem with my graphics card not being recognized buy i downloaded the right drivers.

AMD FX-8320 Vishera 3.5GHz
MSI 970A-G43 AM3+ AMD 970 + SB950 SATA 6Gb/s USB 3
Western Digital WD10EZEX 1TB
MSI R9-270
Patriot Viper 3 8GB RAM (2 x 4gb)
APEX AL-D500EXP 500W ATX12V Power Supply

custome built, all parts from newegg.com, everything is still under warranty