I need help

[Sumer]

Hi, just recieved my new motherboard, cpu and ram today.

Gigabyte GA-Z77X-D3H
Intel i5 3570k
Kingston Hyper X DDR3

Fitted the parts, booted up the pc and windows will not boot, I get an option to repair or start windows normally. When I pick repair it says it cant repair automatically and when I choose start windows normaly it just reboots. Ive tried booting using the windows 7 disc but it doesnt work. I literally dont know what to do and im mega ****ed. Any help would be much appreciated, thanks.
]

 

[Sumer]

Im installing windows now but will installing it just replace the current windows with no issues? I seriously didnt know a fresh install was needed. I havent backed anything up, nothing important tho I just game

 

[Sumer]

Hmm not so good, especially when it comes to downloading all my games off steam again. Ah well theres only one way to learn, the hard way

 

[Sumer]

Oh........Im currently about 80% complete on the re-install although it has come to a complete standstill the last few minutes. I assume at this point theres nothing I can do now

 

[Sumer]

Ah well thats windows installed and everything gone I always wanted to give my hdd a spring clean just not in this fashion, Im dreading downloading all them games again. Must admit tho im notice a good increase in speed compared to the old phenom 965 so it aint all bad

 

[Sumer]

Thats what im currently doing going through my windows.old folder, its going to take a while tho. Thanks anyways to everyone who posted, appreciated.