kernel security check failure

[AlpineTheGreat]

This error has been going on for a few weeks now it stopped for a while but now it started again All of the crashes have this crash address: ntoskrnl.exe+142940

here is the mindump:https://drive.google.com/open?id=0B4qPjQxsIjTpay1kOXJWYmd6TEk

 

[AlpineTheGreat]

Another crash just happened
Here is the mini dump:
https://drive.google.com/open?id=0B4qPjQxsIjTpMnRaWEhMMjBSR1k