Alternating Blue Screen

I have a Satellite P855-S5102 and when I went to turn it on today it began flashing from the Windows 8 screen to a blank blue screen, again and again. I am not able to open any programs other than Task Manager.
I decided to 'reset' the computer, pressing 0 as I power up, but get this message:
"Unable to reset your PC. A required drive partition is missing"
I then attempted to do a 'restore,' but get a message that the restore did not complete successfully.... "An unspecified error occurred during System Restore. (0x80070005)
I never did back up the system on disc.
Any advice?

Hi Tom,
I just fixed that same problem today. Do not replace or wipe your drive yet!
Restart your computer
Go to your task manager       'it may be difficult but try to select it.
Once in task manager select run new task from the file menu.
Type cmd in the dialog box   'this will take you to the command manager.
Type control panel at the prompt   'this will bring up your control panel iin a steady state.
Once in control panel select find and fix problems and at the bottom left corner select recovery.
At this point follow the promts to restore your system back to a prior recovery point.
Good luck
LC

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