Try this: after powering on the laptop, start tapping F8 on the keyboard repeatedly (right after powering on) and see if you get the advanced boot menu options, if you do, use your arrow keys to select safe mode.
From safe mode (if it boots to safe mode), click on the start button, in the start button search files area, type in cmd and then when command prompt or cmd appears in the menu above, right click on it and select run as administrator.
A new window should appear on the screen. In this new box type the following commands in this order:
sfc /scannow (there is a space between the c and /) then hit enter and let this run. when it is complete run the next command
chkdsk /r (there is a space between k and /) then hit enter and if it tells you the disk is locked would you like it to run the next time you restart type "y" and hit enter. Then restart the computer and let chkdsk run. Let the computer try to boot normally after this process and report any problems.
Edited by zingo156, 02 August 2014 - 11:34 AM.