Pc will not boot to os

[Savedbyfaith]

Hey everyone i was using my main PC today and the internet slowed down drastically so i decided to restart but now my PC will not boot to the operating system. I am able to enter the Bios and change setting but when i exit i get to the windows logo with spinning dots (windows 8.1), then a fast blue screen, then a preparing automatic repair then a black screen. in which i can sometimes see and move the cursor. I have a Asus P8Z77-v LX motherboard, i5 3570k, 16 corsair vengeance pro ram (1866), 1000w EVGA supernova G2 power supply, 128gb Kingston hyperx 3k SSD boot drive, 2tb seagate storag, HD7970 gpu. I have tried booting to my storage drive, i have removed my GPU, all but one ram stick, but cpu clock at stock speed, removing the battery from the motherboard but still nothing. Any help would be much appreciated.

[Guest]

could be corrupt windows, 

hope you have a backup/ spare computer to get the data off it

there is some recovery tools on this cd that you can make: www.ultimatebootcd.com

[Map3y]

corupted windows... same hapened to mine win 7.