Windows 7 - Freezing Issues

Currently, these 2 days I've been having freezing issues with my laptop.
Sometimes it started with disturbance sound while playing video or music for seconds, the video playing again normally, and minutes after ended with total freezing.
Couldn't shft+ctrl+del, so I have to reboot.
Sometimes it just went freeze while I'm browsing.
Restore point seems didn't solve the problem too.
Please help me figure out what the problems are......
Here the attachement of dmp file.
Attachment 73324

Your .dmp file is corrupt... please resubmit it for analysis...

hi Tews~~~

here's ... Attachment 73327

let me know if you need any supported files, much thanks

Another corrupt .dmp files... navigate to c:/windows/minidump and zip up the .dmp file...

sorry for the inconvinient and late reply, my laptop keep getting freeze and it driving me nuts,
btw, i just run the memtest and it says there's nothing error with the memory.
here we go Attachment 73335