Blue Screen on shutdown

Hello

Im having windows blue screen when i shut down windows 7. The shutdown screen appears "Logging off..." then "Shutting down...", then blue screen appears.

At the bottom it says "Dumping physical memory to disk" and has a counter 0 to 100. My computer restarts instead of shutting down and screen comes up windows did not shut down correctly and i can choose to start in safe mode or normally.

When 7 starts and i log on I get that windows recovered from a serious error, I copied the error message below. Any incite would be helpful.

Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7600.2.0.0.768.3
Locale ID: 1033

Additional information about the problem:
BCCode: cf
BCP1: 8F12F9CC
BCP2: 00000008
BCP3: 8F12F9CC
BCP4: 00000000
OS Version: 6_1_7600
Service Pack: 0_0
Product: 768_1

Files that help describe the problem:
C:\Windows\Minidump\110109-45781-01.dmp
C:\Users\Kyle\AppData\Local\Temp\WER-66109-0.sysdata.xml

here is my mini dump files from the past couple days