Windows 8.1 re installation issue

I had windows 8.1 installed on my samsung evo 120 gb ssd.A faulty shutdown caused my windows to corrupt.As a result,when I start my system it shows me "windows automatic repair".However,it stays like that forever.I tried re installing my windows but after clicking "install now" option it shows me "setup is starting" and it remains there i.e i windows installer does not shows my ssd partition screen.

I connected the ssd to a laptop via sata to usb connector and can easily see the partitions in my computer but when i try to access it,the system hangs.Also,the windows disk management on the laptop wont display anything once the ssd is connected.

using asus z97 sabertooth mobo
core i7
2*4 gb corsair ram

Please help.

Boot a Windows 8.1 installation disc or flash drive. Select Repair then run Startup Repair up to 3 times, see if thta fixes it.

If you don't have one, see here: Windows 8 and Windows 8.1 ISO - Download or Create

Sounds like a corrupted file system.

The first time i click repair the screen goes blank for forever and after that if i click repair again nothing seems to work.

This is from a booted install DVD or flash drive?

I tried Both

Check the hard drive with the manufacturer's diagnostic tools.

7 Free Hard Drive Testing Programs
Hard Drive Diagnostics Tools and Utilities (Storage) - TACKtech Corp.
Bootable Hard Drive Diagnostics