Blue screens are often called 'Blue Screens of Death' (or BSOD) by users, and 'Stop Messages' by Microsoft. You are receiving the stop message 0x0000007E, or 0x7E for short. There can be many causes, both hardware related and software related. Think hard back to when this first started. Do you know the date?
What changes did you make to your computer just before this started? What software did you install? What program did you update? What hardware changes did you make to your computer?
If you can remember, change things back to what they were before. You could also attempt a System Restore back to the a date before the BSOD started appearing. Here is how:
If you can, start in safe mode with command prompt
and type in:%systemroot%\system32\restore\rstrui.exe
and press Enter
Choose a date from before this problem began.
Following is a link that will take you to the Microsoft Knowledge Base concerning this particular Stop Message. You will need to read each individual article to at least find one that fits your situation. This will help you diagnose the stop message's cause, even though it will require quite a bit of research on your part:http://search.microsoft.com/results.aspx?m...mp;q=0x0000007E