win 7 64 bit crashes freqently

I see a few possible causes. THe first is bad RAM. Download a copy of Memtest86 and burn the ISO to a CD using ImgBurn. Boot from the CD, and run at least 5 passes.

The second is your Asus Data Security Manager Driver. I recommend uninstalling that program.

You may also want to run a system files check. Open an elevated command prompt and enter sfc /scannow.

I still see memory corruption.

Code:

Microsoft (R) Windows Debugger Version 6.11.0001.404 AMD64
Copyright (c) Microsoft Corporation. All rights reserved.


Loading Dump File [C:\Users\Jonathan\Desktop\032710-19141-01.dmp]
Mini Kernel Dump File: Only registers and stack trace are available

Symbol search path is: SRV*c:\symbols*http://msdl.microsoft.com/download/symbols
Executable search path is: 
Windows 7 Kernel Version 7600 MP (4 procs) Free x64
Product: WinNt, suite: TerminalServer SingleUserTS
Built by: 7600.16385.amd64fre.win7_rtm.090713-1255
Machine Name:
Kernel base = 0xfffff800`02c00000 PsLoadedModuleList = 0xfffff800`02e3de50
Debug session time: Fri Mar 26 20:01:05.449 2010 (GMT-4)
System Uptime: 0 days 2:10:23.994
Loading Kernel Symbols
...............................................................
................................................................
................................................
Loading User Symbols
Loading unloaded module list
...........
*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

Use !analyze -v to get detailed debugging information.

BugCheck 1A, {8886, fffffa8000c5f640, fffffa8000c60090, 507}

Probably caused by : memory_corruption ( nt!MiUnlinkPageFromLockedList+298 )

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

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

MEMORY_MANAGEMENT (1a)
    # Any other values for parameter 1 must be individually examined.
Arguments:
Arg1: 0000000000008886, The subtype of the bugcheck.
Arg2: fffffa8000c5f640
Arg3: fffffa8000c60090
Arg4: 0000000000000507

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


BUGCHECK_STR:  0x1a_8886

CUSTOMER_CRASH_COUNT:  1

DEFAULT_BUCKET_ID:  VISTA_DRIVER_FAULT

PROCESS_NAME:  ekrn.exe

CURRENT_IRQL:  2

LAST_CONTROL_TRANSFER:  from fffff80002c93098 to fffff80002c71f00

STACK_TEXT:  
fffff880`08e9f178 fffff800`02c93098 : 00000000`0000001a 00000000`00008886 fffffa80`00c5f640 fffffa80`00c60090 : nt!KeBugCheckEx
fffff880`08e9f180 fffff800`02c56c7d : 00000000`0003c3ba 00000000`00000000 fffffa80`0003c3ba 00000580`00000000 : nt!MiUnlinkPageFromLockedList+0x298
fffff880`08e9f210 fffff800`02c573ce : 00000000`00000000 fffffa80`0ab5c600 00000000`00000000 fffff880`08e9f400 : nt!MmPurgeSection+0x4bd
fffff880`08e9f300 fffff800`02c43d51 : fffffa80`0ab42328 fffff800`02deb4f0 00000028`00000000 fffff800`00000000 : nt!CcPurgeCacheSection+0x172
fffff880`08e9f370 fffff800`02c96876 : fffffa80`0ab5c620 fffff800`02deb4f0 00000000`00000001 fffffa80`0ab5c620 : nt!CcPurgeAndClearCacheSection+0x75
fffff880`08e9f420 fffff880`01260f5c : 00000000`05730000 00000000`05730000 fffff8a0`09bfa7a0 fffffa80`04cfe180 : nt!CcSetFileSizesEx+0x2c6
fffff880`08e9f4a0 fffff880`012d86a0 : 00000000`00000000 7fffffff`ffffffff 00000000`00005730 00000000`00000000 : Ntfs!NtfsSetBothCacheSizes+0x50
fffff880`08e9f500 fffff880`012c68dd : fffff880`03c936b0 fffffa80`0a1a8a30 00000000`00000001 00000000`00000000 : Ntfs!NtfsDeleteAllocation+0x2cc
fffff880`08e9f5e0 fffff880`012d3212 : fffff880`03c936b0 00000000`00000001 fffff980`0878a038 00000000`00000001 : Ntfs!NtfsDeleteAllocationFromRecord+0x16d
fffff880`08e9f6a0 fffff880`012ecc0a : fffff880`03c936b0 fffff8a0`09bfa670 fffff8a0`03720bc0 fffff880`08e9f99c : Ntfs!NtfsDeleteFile+0x346
fffff880`08e9f920 fffff880`0125aaa9 : fffffa80`067fa010 fffffa80`0e1f8bd0 fffff880`03c93610 fffffa80`0ba9f060 : Ntfs!NtfsCommonCleanup+0x15da
fffff880`08e9fd30 fffff800`02c69d87 : fffff880`03c93610 00000000`00000000 00000000`00000000 00000000`00000000 : Ntfs!NtfsCommonCleanupCallout+0x19
fffff880`08e9fd60 fffff800`02c69d41 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!KySwitchKernelStackCallout+0x27
fffff880`03c934e0 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!KiSwitchKernelStackContinue


STACK_COMMAND:  kb

FOLLOWUP_IP: 
nt!MiUnlinkPageFromLockedList+298
fffff800`02c93098 cc              int     3

SYMBOL_STACK_INDEX:  1

SYMBOL_NAME:  nt!MiUnlinkPageFromLockedList+298

FOLLOWUP_NAME:  MachineOwner

MODULE_NAME: nt

DEBUG_FLR_IMAGE_TIMESTAMP:  4a5bc600

IMAGE_NAME:  memory_corruption

FAILURE_BUCKET_ID:  X64_0x1a_8886_nt!MiUnlinkPageFromLockedList+298

BUCKET_ID:  X64_0x1a_8886_nt!MiUnlinkPageFromLockedList+298

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

Did the Memtest give you any errors? Also, how much RAM do you have?

nenad said:

system scan gave me this result

You can re-run SFC. It may fix the files on this pass. Also upload the cns file and we can examine it.


EDIT... CNS IS A TYPO. CORRECT FILE IS CBS.log