Windows 7: BSOD - Driver Power State Failure - HP Pavilion dv6 (64-Bit)

It happened yesterday while i was De-fragmentating my computer and like a month ago also. So it happened two times already, before it becomes a major problem how can i solve this ? I am new to all this BSOD thing so i may not know the computer language to well , in fact its the first time this has ever happened to me (BSOD).

Additional Info: The Laptop is new about 4 or 5 months old

Thanks alot and ill leave the information right here :

Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7601.2.1.0.768.3
Locale ID: 1033

Additional information about the problem:
BCCode: 9f
BCP1: 0000000000000003
BCP2: FFFFFA800B689440
BCP3: FFFFF80000B9C3D8
BCP4: FFFFFA8005887C10
OS Version: 6_1_7601
Service Pack: 1_0
Product: 768_1

Files that help describe the problem:
C:\Windows\Minidump\062412-21106-01.dmp
C:\Users\Diego\AppData\Local\Temp\WER-53102-0.sysdata.xml

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please help, thanks again

The BugCheck code indicates that a driver interfered with the system's power state. Which driver? To find out, we need you to please follow the http://www.sevenforums.com/crashes-d...tructions.html.