BSOD driver_power_state_failure

[kontine]

Hello techspot community,

I faced two crashes recently. Actually, I didn't see any BSOD because I was away from my laptop. I don't remember what happened the first time. However, the second time -which was yesterday- occured during shutting down. The system stucked on the screen that said "shutting down" for a while. After several moments I noticed that it was restarting. Finally, I retried to shut it down, which ended up well.
I'm posting the description of the dmp files and uploading them in case they're necessary.

My laptop is a Lenovo G50-80 which had FreeDos. I installed Windows 7 Ultimate 64-bit

Don't hesitate to ask me for further information

BlueScreenView report:

==================================================
Dump File : 092015-13915-01.dmp
Crash Time : 20/9/2015 2:02:54 πμ
Bug Check String : DRIVER_POWER_STATE_FAILURE
Bug Check Code : 0x0000009f
Parameter 1 : 00000000`00000003
Parameter 2 : fffffa80`0b877bd0
Parameter 3 : fffff800`042aa3d8
Parameter 4 : fffffa80`0f1f1c60
Caused By Driver : ntoskrnl.exe
Caused By Address : ntoskrnl.exe+7fd00
File Description : NT Kernel & System
Product Name : Microsoft® Windows® Operating System
Company : Microsoft Corporation
File Version : 6.1.7601.17592 (win7sp1_gdr.110408-1631)
Processor : x64
Crash Address : ntoskrnl.exe+7fd00
Stack Address 1 :
Stack Address 2 :
Stack Address 3 :
Computer Name :
Full Path : C:\Windows\Minidump\092015-13915-01.dmp
Processors Count : 4
Major Version : 15
Minor Version : 7601
Dump File Size : 959.568
Dump File Time : 20/9/2015 2:03:37 πμ
==================================================

==================================================
Dump File : 090615-29998-01.dmp
Crash Time : 6/9/2015 2:44:35 πμ
Bug Check String : DRIVER_POWER_STATE_FAILURE
Bug Check Code : 0x0000009f
Parameter 1 : 00000000`00000003
Parameter 2 : fffffa80`0b9b0bd0
Parameter 3 : fffff800`0429c3d8
Parameter 4 : fffffa80`08d39c60
Caused By Driver : ntoskrnl.exe
Caused By Address : ntoskrnl.exe+7fd00
File Description : NT Kernel & System
Product Name : Microsoft® Windows® Operating System
Company : Microsoft Corporation
File Version : 6.1.7601.17592 (win7sp1_gdr.110408-1631)
Processor : x64
Crash Address : ntoskrnl.exe+7fd00
Stack Address 1 :
Stack Address 2 :
Stack Address 3 :
Computer Name :
Full Path : C:\Windows\Minidump\090615-29998-01.dmp
Processors Count : 4
Major Version : 15
Minor Version : 7601
Dump File Size : 960.000
Dump File Time : 6/9/2015 2:45:45 πμ
==================================================

 

[Tmagic650]

This laptop may be overheating or the boot hard drive is failing

 

[kontine]

This laptop may be overheating or the boot hard drive is failing

Thank you!
I bought this laptop on early August and I use a cooler. So, what could be the solution if the same problem occur again?

 

[Tmagic650]

You might take it in and have it checked under Warranty. What antivirus are you using?

 

[kontine]

You might take it in and have it checked under Warranty. What antivirus are you using?

I'm using BitDefender Total Security 2015

 

[Tmagic650]

Have it checked under warranty

 

[kontine]

Have it checked under warranty

Right. Thanks for your help