BSOD randomly, more frequent when starting up/logging on

Driver verifier is enabled there.

Code:

DEFAULT_BUCKET_ID:  VERIFIER_ENABLED_VISTA_MINIDUMP

Disable Driver Verifier and see if the situation changes or not.

Stop 0x116 now, a graphics related crash.

Code:

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*                        Bugcheck Analysis                                    *
*                                                                             *
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Use !analyze -v to get detailed debugging information.

BugCheck 116, {fffffa800ffa0010, fffff880031e3704, ffffffffc000009a, 4}

Unable to load image \SystemRoot\system32\DRIVERS\nvkflt.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for nvkflt.sys
*** ERROR: Module load completed but symbols could not be loaded for nvkflt.sys
Probably caused by : nvkflt.sys ( nvkflt+31704 )

Followup: MachineOwner
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Many a things may be tested again. First let us do something with the display driver.

Download the latest 314.22 WHQL display driver. Drivers- Download NVIDIA Drivers
Save it in your computer.

Now disconnect network. Go to Control Panel > Programs and features and uninstall everything related nvidia (assuming you dont use nvidia chipset. If you use, dont uninstall the chipset elements.).

Start executing the downloaded driver. Click "agree and continue". In the next window, there is a radio button Custom (Advanced). Click it .... and select the display driver and PhysX in the next list. Dis-select the all. Install it. When done, connect back to network.

Let us know the results.

Still it is the display driver, despite of the latest version. My bad.

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                                    *
*                                                                             *
*******************************************************************************

Use !analyze -v to get detailed debugging information.

BugCheck 1000007E, {ffffffffc0000005, fffff88005c5c07b, fffff88007e6fc58, fffff88007e6f4b0}

Probably caused by : nvlddmkm.sys ( nvlddmkm+18507b )

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

Stress test the Graphics Card using Furmark.
Video Card - Stress Test with Furmark

Is the computer hot? Report us the heat of the computer after a couple of hours of your normal usage. Upload a screenshot of the summery tab of Speccy.

Can you dismantle the computer to clean up the inside, specially the air vents and fan grills? When re-seating, dont forget to apply thermal paste to the CPU.

Check the PSU too. You may use eXtreme Power Supply Calculator to see if it is supplying adequate powers or not.