Frequent BSOD, error 0x1000007e

Hi, welcome to seven forums

there are 2 most common errors in your dump files, which are:

Code:

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

Use !analyze -v to get detailed debugging information.

BugCheck 1000007E, {ffffffffc0000005, fffff96000100e41, fffff88003785848, fffff880037850a0}

Probably caused by : win32k.sys ( win32k!CAutoMutex::CAutoMutex+15 )
Followup: MachineOwner
---------

6: kd> !analyze -v
*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

SYSTEM_THREAD_EXCEPTION_NOT_HANDLED_M (1000007e)
This is a very common bugcheck.  Usually the exception address pinpoints
the driver/function that caused the problem.  Always note this address
as well as the link date of the driver/image that contains this address.

and:

Code:

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

Use !analyze -v to get detailed debugging information.

BugCheck D1, {fffff8800155ba10, 2, 8, fffff8800155ba10}

Probably caused by : CLFS.SYS ( CLFS!CClfsContainer::Close+23 )

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

6: kd> !analyze -v
*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

DRIVER_IRQL_NOT_LESS_OR_EQUAL (d1)
An attempt was made to access a pageable (or completely invalid) address at an
interrupt request level (IRQL) that is too high.  This is usually
caused by drivers using improper addresses.

both of them point to a system file...

try to do the following:
- Open elevated command prompt (Start > Run... > type cmd then enter
- type chkdsk /f
then see if it finds any error...

I'll try to go through it when I got home