bsod win7 ultimate x64

Got 1-2 bsods every day, really annoying ! I`m waiting for a solution from you guys, thanks. Here is the archive :

Run a RAM test
RAM - Test with Memtest86+

Run a scan of Malwarebytes

Code:

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*                                                                             *
*                        Bugcheck Analysis                                    *
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PAGE_FAULT_IN_NONPAGED_AREA (50)
Invalid system memory was referenced.  This cannot be protected by try-except,
it must be protected by a Probe.  Typically the address is just plain bad or it
is pointing at freed memory.
Arguments:
Arg1: ffffd8a00e7ea290, memory referenced.
Arg2: 0000000000000000, value 0 = read operation, 1 = write operation.
Arg3: fffff8800102895d, If non-zero, the instruction address which referenced the bad memory
    address.
Arg4: 0000000000000007, (reserved)

Debugging Details:
------------------


Could not read faulting driver name

READ_ADDRESS: GetPointerFromAddress: unable to read from fffff800030fc100
 ffffd8a00e7ea290 

FAULTING_IP: 
Ntfs!NtfsLookupNtfsMcbEntry+1d
fffff880`0102895d 488b4920        mov     rcx,qword ptr [rcx+20h]

MM_INTERNAL_CODE:  7

CUSTOMER_CRASH_COUNT:  1

DEFAULT_BUCKET_ID:  VISTA_DRIVER_FAULT

BUGCHECK_STR:  0x50

CURRENT_IRQL:  0

LAST_CONTROL_TRANSFER:  from fffff80002ed6509 to fffff880042167f2

STACK_TEXT:  
fffff800`00b9cc98 fffff800`02ed6509 : 00000000`002fe692 fffffa80`068fc9d8 fffff800`0304dcc0 00000000`00000001 : 0xfffff880`042167f2
fffff800`00b9cca0 fffff800`02ec49fc : fffff800`0303fe80 fffff800`00000000 00000000`00000000 fffff880`0428a588 : nt!PoIdle+0x52a
fffff800`00b9cd80 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!KiIdleLoop+0x2c


STACK_COMMAND:  .bugcheck ; kb

FOLLOWUP_IP: 
Ntfs!NtfsLookupNtfsMcbEntry+1d
fffff880`0102895d 488b4920        mov     rcx,qword ptr [rcx+20h]

SYMBOL_NAME:  Ntfs!NtfsLookupNtfsMcbEntry+1d

FOLLOWUP_NAME:  MachineOwner

MODULE_NAME: Ntfs

IMAGE_NAME:  Ntfs.sys

DEBUG_FLR_IMAGE_TIMESTAMP:  4ce792f9

FAILURE_BUCKET_ID:  X64_0x50_Ntfs!NtfsLookupNtfsMcbEntry+1d

BUCKET_ID:  X64_0x50_Ntfs!NtfsLookupNtfsMcbEntry+1d

Followup: MachineOwner
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