BSOD 'driver power state failure' on shutting down

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Your .dmp files point toward a driver.

Code:

>[ 16, 2]   0  0 fffffa80091e73f0 00000000 00000000-00000000    
	      Unable to load image \SystemRoot\system32\drivers\cm11264.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for cm11264.sys
*** ERROR: Module load completed but symbols could not be loaded for cm11264.sys
 \Driver\ASUSU1
			Args: 00016600 00000001 00000004 00000006
 [ 16, 2]   0 e1 fffffa80091ebb10 00000000 00000000-00000000    pending
	       \Driver\ksthunk
			Args: 00016600 00000001 00000004 00000006
 [  0, 0]   0  0 00000000 00000000 00000000-fffffa80091bf0d0    

			Args: 00000000 00000000 00000000 00000000
0: kd> lmvm cm11264
start             end                 module name
fffff880`07818000 fffff880`079a3000   cm11264  T (no symbols)           
    Loaded symbol image file: cm11264.sys
    Image path: \SystemRoot\system32\drivers\cm11264.sys
    Image name: cm11264.sys
    Timestamp:        Tue Aug 23 13:44:13 2011 (4E535A4D)
    CheckSum:         0013F60A
    ImageSize:        0018B000
    Translations:     0000.04b0 0000.04e4 0409.04b0 0409.04e4

Product:C-Media USB Audio Driver (WDM) Company:C-Media Electronics Inc
Description:C-Media Audio WDM Driver

Suggestions:
Click on the Start ► Control Panel ► Programs ► Uninstall a program ► Uninstall everything related to; C-Media USB Audio. REBOOT then delete remnants of its drivers/older drivers using Driver Fusion/Sweeper

Upgrading drivers for pre-existing device

1. Open Device Manager Driver Install - Device Manager
2. In the Device Manager locate the device you wish to update the drivers for/look for a
3. Right-click the device and click Properties.
4. In the Properties window click the Driver tab.
5. Click the Update Driver button.
6. Search online for the latest drivers.

Once drivers have been installed reboot.

OR

C-Media Electronics, Inc.

The tutorial below may be of help in your situation:

• USB Selective Suspend - Turn On or Off

Additionally:

• Start Menu\Programs\AVG Public:Start Menu\Programs\AVG Public

AVG contributes in BSOD-s. Please uninstall it using the AVG Removal tool:

• AVG | Download tools and utilities

Recommended antivirus program for Windows 7 based on stability compared to others:-

• Microsoft Security Essentials - Free Antivirus for Windows
• Malwarebytes - The Free version
• Good and Free system security combination.

Do not start the free trial of Malware Bytes; remember to deselect that option when prompted.

Run a full scan with both (separately) once downloaded, installed and updated.

Run the System File Checker that scans the of all protected Windows 7 system files and replaces incorrect corrupted, changed/modified, or damaged versions with the correct versions if possible:

• SFC /SCANNOW Command - System File Checker

Run Disk Check on your hard disk for file system errors and bad sectors on it:

• Disk Check

Free up the start-up, nothing except the antivirus is usually needed.

• Startup Programs - Change
• Troubleshoot Application Conflicts by Performing a Clean Startup

Let us know the results and further BSOD-s if any.

You should disable it and see if the BSOD happens again.