BSOD Random times, While chrome open, 0x0000007E

Code:

*** WARNING: Unable to verify timestamp for nvlddmkm.sys
*** ERROR: Module load completed but symbols could not be loaded for nvlddmkm.sys
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*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
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Use !analyze -v to get detailed debugging information.

BugCheck 1000007E, {ffffffffc0000005, fffff880060640f0, fffff8800395b2e8, fffff8800395ab40}

Probably caused by : nvlddmkm.sys ( nvlddmkm+3b30f0 )

Followup: MachineOwner
---------

start             end                 module name
fffff880`05cb1000 fffff880`0675c000   nvlddmkm T (no symbols)           
    Loaded symbol image file: nvlddmkm.sys
    Image path: \SystemRoot\system32\DRIVERS\nvlddmkm.sys
    Image name: nvlddmkm.sys
    Timestamp:        Fri Mar 15 12:07:00 2013 (51427B3C)
    CheckSum:         00A8D47C
    ImageSize:        00AAB000
    Translations:     0000.04b0 0000.04e4 0409.04b0 0409.04e4

Run Windows Update - are you offered an updated video driver for your video card in Optional Updates? If so, downlaod and install it.

Code:

*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

Use !analyze -v to get detailed debugging information.

BugCheck 9F, {3, fffffa8007d1ea10, fffff80000ba2748, fffffa8007421650}

*** WARNING: Unable to verify timestamp for nvlddmkm.sys
*** ERROR: Module load completed but symbols could not be loaded for nvlddmkm.sys
Probably caused by : pci.sys

Followup: MachineOwner
---------

Irp is active with 4 stacks 3 is current (= 0xfffffa80074217b0)
 No Mdl: No System Buffer: Thread 00000000:  Irp stack trace.  Pending has been returned
     cmd  flg cl Device   File     Completion-Context
 [  0, 0]   0  2 00000000 00000000 00000000-00000000    

			Args: 00000000 00000000 00000000 ffffffffc000000e
 [ 16, 0]   0  2 fffffa8007d1ea10 00000000 fffff8800f7a9c0c-fffffa800bf4b6a0    
	      *** WARNING: Unable to verify timestamp for sptd.sys
*** ERROR: Module load completed but symbols could not be loaded for sptd.sys
 \Driver\pci	nvlddmkm
			Args: 00000000 00000000 00000000 00000000
>[ 16, 2]   0 e1 fffffa800a8ab480 00000000 00000000-00000000    pending
	       \Driver\nvlddmkm
			Args: 00000000 00000001 00000001 00000000
 [  0, 0]   0  0 00000000 00000000 00000000-fffffa800d9108b0    

			Args: 00000000 00000000 00000000 00000000

Is Daemon Tools installed - uninstall it, its a well-established cause of BSOD's.

Code:

Start Menu\Programs\TuneUp Utilities 2011	Public:Start Menu\Programs\TuneUp Utilities 2011	Public

Uninstall this - could also be the cause of the trouble. Tuning software does not improve Windows 7 performance.

If you use other DVD mounting software uninstall then - they use the sptd.sys driver that is a well known cause of BSOD.

Regardless of how long you have had it installed, I strongly recommend yiu uninstall TuneUp Utilities until we have solved the BSOD.