Let's go step by step, I have already done the home works
I uploaded a copy again with the configured system from an image that has no problems.
That image has windows, drivers, the CS6, and office.
I uninstalled eset smart security.
I installed microsoft security essencials.
I installed Malwarebytes (thanks for "untick this options")
I performed the memory test with memtest.
THE first pc last night with several hours of use.
Pass the test without any errors.
This morning with cold pc, I repeated the test and all ok.
This weekend while I play Skyrim
on the x360 to do the tests over 20 passes.
I uninstalled TuneUp Utilities.
attached an image of the hard drive status.
I opened the computer to remove a hard drive and return the dvd.
I found a cable if not loose.
I enclose a photo of one of the times it has been frozen.
But he left the blue screen, it was so, as a graphic failure.
I downloaded the utility of Segate to see the HDD status.
I said there were no errors.
But there is a fact not that means:
"Smart is supported and enabled"
"SMART has not been tripped"
The system seems to be stable.
We pass the Ccleaner.
And when I tried to boot this morning thinking stayed with the black screen.
Turn off the system and when I boot Fixer Upper indicated that I had to start, so I did.
Take advantage and made the windows memory test (disk recovery tools to win 7)
Pass the test, all ok
Right now the system is working properly.
This computer when booting always been very sensitive.
I mean, when you leave the DELL logo and a progress bar sometimes they do not load at all. If I have a DVD stuck, an external drive or usb esata connected usually stays thinking and does not end the progress bar.
have the last Bios version - A13
I've heard of an utility called Wondershare Livebox, not if it is good for something.
Infinitely appreciate the help and support.
Reporting instructions and I still hope.
Have a good afternoon.
Greetings from Spain.