System hangs

I am using dynabook core 2 deo with 4 gb ram it was with win 7 hp but i format it with ultimate. My system hangs frequently i check my event log but no idea how to see my mini dump file and how to find what is wrong .Once hang will not get hang until i restart next time.:confused:
Attach mini dump file



Excellent Member
Microsoft Community Contributor
Someone may come along that can read your .dmp file, but for now, you show several Application errors. Have you selected them and double clicked to get the expanded explanation of what that is?

I have done that but not much idea about that so help needed.

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