Well, you have dumps going back to May of 2013, most of those are corrupt anyway.
Starting from this month you have 11 dumps, the first 4 are all hardware,
Code:
BugCheck 124, {0, 869d58fc, 0, 0}
Probably caused by : hardware
Followup: MachineOwner
The rest are from,
Code:
BugCheck 1000007E, {c0000005, 9718cf56, 8e727aec, 8e7276d0}
Probably caused by : AtihdW73.sys ( AtihdW73+3f56 )
Followup: MachineOwner
Driver Reference Table - AtihdW73.sys
Your ATI sound device.
It looks fairly recent,
Code:
start end module name
ac5b2000 ac5c9000 AtihdW73 T (no symbols)
Loaded symbol image file: AtihdW73.sys
Image path: \SystemRoot\system32\drivers\AtihdW73.sys
Image name: AtihdW73.sys
Timestamp: [COLOR="Blue"]Tue Sep 24 17:22:19 2013[/COLOR] (52422CBB)
CheckSum: 00021D45
ImageSize: 00017000
Translations: 0000.04b0 0000.04e4 0409.04b0 0409.04e4
There was also a Norton driver flagged but considering the problems you are having in this thread,
http://www.sevenforums.com/sound-audio/323947-sound-devices-have-disappeared.html
I think following through with fireberd on that matter would be wise.
If I can make a couple of suggestions, filling in your system specs would help,
http://www.sevenforums.com/tutorials/180324-system-info-see-your-system-specs.html
Using that method, they are at the bottom of each of your posts, the Belarc you posted in your other thread contained your product keys, so I asked to have it removed for you.
This is a laptop you had Vista on then upgraded to Seven, you mentioned a repair install in your other thread, have you tried that?
http://www.sevenforums.com/tutorials/3413-repair-install.html
Lastly, you mentioned you used Driver easy to update a driver, those programs are not recommended because they often find outdated or incorrect drivers.
The fact that the first few dumps were blaming hardware on an aging laptop is not a good thing.
And seeing the limited amount of drivers available at Gateway isn't promising, I looked on the AMD site for drivers and it just refers back to the manufacturer for your model.