Windows 7 error...kind of a bluescreen, but no crash dump

Windows 7 64bit .
User comes back to her desk after being away and had found the computer in this state.
It has happened approx. 4 times in the last 3 weeks.  The laptop will always restart ok.

We checked the add/remove programs- nothing installed recently.

We changed the power settings so that dim the screen, turning off the screen and sleep are now set to 'never' (since it seems to be happening after periods of being idle?  (Kind of reaching on that one, I know...)

Any thoughts or suggestions welcome!
IMG-2404--2-.JPG
snyperjAsked:
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rindiCommented:
If there is no dump file, that is usually because either you haven't set the system to create minidumps (the large dumps use far too much disk space with no extra info that would be useful, and there might not be enough space left for the complete dump), the space isn't contiguous, your HD is bad or the file-system corrupt, there is no small pagefile on C:\ (256MB is enough), or the system overheated and had to shut-down before the dump was written.

So in order to make sure dumps get written, first make sure the system is set for minidumps, there is a small pagefile on. Then run the HD manufacturer's diagnostic tool on your disk. If that comes out error-free, run a chkdsk /f /r, and after that a defrag.
JohnBusiness Consultant (Owner)Commented:
While you are getting a dump file to review, consider memory faults (run memtest86) and hard drive errors (run the computer vendor's hard drive test - should be on their support site).
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snyperjAuthor Commented:
The system is set to make crash dumps...there were several files in the mini dump folder, just not ones that reflect the blue screen I attached...which has occurred recently- several times.

The dump files that are in there were from January of this year and August of last year.
rindiCommented:
Full crash dumps or minidumps?
nobusCommented:

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Windows 7

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