|google is really easy to use. I just typed in your question.|
Consider instead of reading the minidump that you review your event viewer logs and you capture the exact blue screen error then look it up via google.
You would also start with basics like making sure the mainboard/cpu is clear of dust and all the fans are working correctly [just because they spin doesn't me they are at the right rpms]
Then you would do your maintenance like running chkdsk /r, disk cleanup and defrag
Run your antispyware and antivirus after you have updated them.