See if this assists you with your Repair options.
You can use the power button to restart your computer three times. This will start the Windows Recovery Environment.
"How To Access Advanced Startup Options in Windows 8 or 8.1"
http://pcsupport.about.com/od/windows-8/a/open-advanced-startup-options-windows-8.htm
"How to Boot to Advanced Startup Options in Windows 8 and 8.1"
http://www.eightforums.com/tutorials/4935-startup-options-menu-boot-windows-8-a.html
There is detailed information here too.
http://www.eightforums.com/tutorials/2843-automatic-repair-run-windows-8-a.html
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And please read this method:
"How to Boot to "System Recovery Options" in Windows 8 and 8.1"
http://www.eightforums.com/tutorials/2269-system-recovery-options-boot-windows-8-a.html
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