BSOD randomly occurs

From the 3 crashes of this year there is only 1 dump of a few days ago.
Please check in %systemroot%\minidump if there are more dumps present, if there are no more dumps run driver verifier.
Please make sure your pc is configured for small dump files How to configure minidump | Windows 7 tutorial

Diagnostic Test

 DRIVER VERIFIER

   Warning

Please make a backup of your important files and get your rescue media or create one.
Please create a restore point.

Please follow this tutorial to run driver verifier.

Driver verifier stresses your drivers and will crash your pc if any driver fails due to a violation.

Driver verifier should be performed for a max of 48 hours, or when you have a bluescreen, whatever comes first.

If driver verifier has found a violation and you can't get back into windows normally, try to boot into safe mode and reset in safe mode driver verifier, or in the troubleshooting options open command prompt and type verifier /reset.

   Note

Your system will act very sluggishly while driver verifier is enabled, this is normal as your drivers will be being subjected to heavy testing in order to make them crash.

ESET is having trouble looking for the data it wants, ESET accessed memory that didn't contain anything.
Please uninstall ESET and replace it with Microsoft Security Essentials
How do I manually uninstall my Windows ESET product?—ESET Knowledgebase

Code:

*** WARNING: Unable to verify timestamp for epfwwfp.sys
*** ERROR: Module load completed but symbols could not be loaded for epfwwfp.sys

For now you only need to test your system and see if the problem returns :)