Hi Scout,
I would suggest you to try the methods given below and check if it helps, but before we proceed, please answer the questions given below.
1) Are you able to boot the computer to the start screen?
2) May I know the reason of performing an automatic repair?
3) Do you remember making any changes prior to this issue?
Now follow the methods given below.
If you are unable to boot the computer to the start screen, follow the steps given below.
Method 1:
Disconnect all the devices connected to the computer except keyboard and mouse and check if you are able to boot to the start screen.
If the computer fails to boot, try performing safe mode with DVD and perform clean boot.
Method 2: Safe Mode (Please disconnect all the devices connect to the computer except Keyboard and mouse)
Let’s boot from the Windows 8 DVD and login in Safe Mode
a) Boot from Windows 8 DVD.
b) After you see a Choose an Option, click on
‘Troubleshoot’.
c) Now click on ‘Advanced Options’ and then on
‘Windows Startup Settings’.
d) Use your arrow keys to go to ‘Safe Mode’ and press
Enter.
If you are able to boot in safe mode, please perform clean boot and check if it helps.
Method 3: Perform clean boot.
To help troubleshoot error messages and other issues, you can start Windows 8 by using a minimal set of drivers and startup programs. This kind of startup is known as a "clean boot." A clean boot helps eliminate software
conflicts.
http://support.microsoft.com/kb/929135
Important: Reset the computer to start as usual.
Note: After you have finished troubleshooting, follow these steps to boot to normal startup.
a) Press the ‘Windows + R’ key on the keyboard.
b) In the ‘Run’ windows type ’MSCONFIG’ and click
‘Ok’.
c) On the ‘General’ tab, click the ‘Normal Startup’ option, and then click
‘OK’.
d) When you are prompted to restart the computer, click
‘Restart’.
If you are unable to boot the computer to the start screen, try performing automatic repair using Windows 8 DVD.
Method 4: You may try to boot from the Windows 8 DVD and try performing an Automatic repair from Windows Recovery Environment (WinRE).
To perform Automatic repair on Windows 8 computer follow these steps:
a) Insert the media such as (USB or DVD) and restart your computer
b) Press F12 key (typically this is F12, but it can differ between computer manufacturers) and choose the drive that you inserted the installation media into.
Once the Windows Setup window appears, follow these steps:
c) Click Next and select Repair your computer.
d) You will then see a blue screen and an option to choose. Choose the option
Troubleshoot and select Advanced options.
e) You may choose Automatic Repair from Advanced boot option.
Also refer to the article given below.
Windows hangs or freezes
http://support.microsoft.com/kb/2681286?wa=wsignin1.0
Hope the information helps, if you have any further queries, feel free to post, we will be glad to assist you.