Multiple BSOD while browsing the web

Code:

Microsoft (R) Windows Debugger Version 6.3.9600.16384 AMD64
Copyright (c) Microsoft Corporation. All rights reserved.


Loading Dump File [C:\Users\YUSSIKAT\Downloads\PATRIKROOTH-2015-06-22__23620,29\062215-13540-01.dmp]
Mini Kernel Dump File: Only registers and stack trace are available


************* Symbol Path validation summary **************
Response                         Time (ms)     Location
Deferred                                       SRV*c:\symbols*http://msdl.microsoft.com/download/symbols
Symbol search path is: SRV*c:\symbols*http://msdl.microsoft.com/download/symbols
Executable search path is: 
Windows 7 Kernel Version 7601 (Service Pack 1) MP (2 procs) Free x64
Product: WinNt, suite: TerminalServer SingleUserTS
Built by: 7601.18798.amd64fre.win7sp1_gdr.150316-1654
Machine Name:
Kernel base = 0xfffff800`02c66000 PsLoadedModuleList = 0xfffff800`02eab890
Debug session time: Mon Jun 22 06:01:30.280 2015 (UTC + 6:00)
System Uptime: 0 days 0:01:06.732
Loading Kernel Symbols
.

Press ctrl-c (cdb, kd, ntsd) or ctrl-break (windbg) to abort symbol loads that take too long.
Run !sym noisy before .reload to track down problems loading symbols.

..............................................................
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Loading User Symbols
Loading unloaded module list
.....
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*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
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Use !analyze -v to get detailed debugging information.

BugCheck 4E, {99, 42dfd, 2, 42dfc}

Probably caused by : memory_corruption ( nt!MiBadShareCount+4c )

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

0: kd> !analyze -v
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*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
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PFN_LIST_CORRUPT (4e)
Typically caused by drivers passing bad memory descriptor lists (ie: calling
MmUnlockPages twice with the same list, etc).  If a kernel debugger is
available get the stack trace.
Arguments:
Arg1: 0000000000000099, A PTE or PFN is corrupt
Arg2: 0000000000042dfd, page frame number
Arg3: 0000000000000002, current page state
Arg4: 0000000000042dfc, 0

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


BUGCHECK_STR:  0x4E_99

CUSTOMER_CRASH_COUNT:  1

DEFAULT_BUCKET_ID:  WIN7_DRIVER_FAULT

PROCESS_NAME:  Steam.exe

CURRENT_IRQL:  2

ANALYSIS_VERSION: 6.3.9600.16384 (debuggers(dbg).130821-1623) amd64fre

LAST_CONTROL_TRANSFER:  from fffff80002d6b03c to fffff80002cd8a40

STACK_TEXT:  
fffff880`0a6f7768 fffff800`02d6b03c : 00000000`0000004e 00000000`00000099 00000000`00042dfd 00000000`00000002 : nt!KeBugCheckEx
fffff880`0a6f7770 fffff800`02c856b7 : 00000000`00000000 fffff680`00038368 00000000`00000000 00000001`00000001 : nt!MiBadShareCount+0x4c
fffff880`0a6f77b0 fffff800`02d0aa07 : 00000000`00000000 fffff680`00038ff8 fffffa80`04756b30 fffffa80`00000002 : nt! ?? ::FNODOBFM::`string'+0x30f8d
fffff880`0a6f7960 fffff800`02cc5f1f : fffffa80`00000000 00000000`0a0b0fff 00000000`00000000 00000000`00000000 : nt!MiDeleteVirtualAddresses+0x41f
fffff880`0a6f7b20 fffff800`02cd7cd3 : ffffffff`ffffffff 00000000`02d3e6a0 00000000`02d3e698 00000000`00008000 : nt!NtFreeVirtualMemory+0x61f
fffff880`0a6f7c20 00000000`7738ddba : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!KiSystemServiceCopyEnd+0x13
00000000`02d3e668 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : 0x7738ddba


STACK_COMMAND:  kb

FOLLOWUP_IP: 
nt!MiBadShareCount+4c
fffff800`02d6b03c cc              int     3

SYMBOL_STACK_INDEX:  1

SYMBOL_NAME:  nt!MiBadShareCount+4c

FOLLOWUP_NAME:  MachineOwner

MODULE_NAME: nt

DEBUG_FLR_IMAGE_TIMESTAMP:  5507a73c

IMAGE_VERSION:  6.1.7601.18798

IMAGE_NAME:  memory_corruption

FAILURE_BUCKET_ID:  X64_0x4E_99_nt!MiBadShareCount+4c

BUCKET_ID:  X64_0x4E_99_nt!MiBadShareCount+4c

ANALYSIS_SOURCE:  KM

FAILURE_ID_HASH_STRING:  km:x64_0x4e_99_nt!mibadsharecount+4c

FAILURE_ID_HASH:  {4c83cdad-f603-74ff-b7e1-9eb7f3029c2a}

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

Take memtest. Run for 8 passes and test each stick in a know good slot for an additional 6 passes.

• RAM - Test with Memtest86+

The goal is to test all the RAM sticks and all the motherboard slots.

Check your motherboard manual to ensure the RAM sticks are in the recommended motherboard slots. Some motherboards have very specific slots required for the number of RAM sticks installed.

If you get errors, stop the test and continue with the next step.

1. Remove all but one stick of RAM from your computer (this will be RAM stick #1), and run Memtest86 again, for 7 passes.

*Be sure to note the RAM stick, use a piece of tape with a number, and note the motherboard slot.

If this stick passes the test then go to step #3.

2. If RAM stick #1 has errors, repeat the test with RAM stick #2 in the same motherboard slot.

*If RAM stick #2 passes, this indicates that RAM stick #1 may be bad. If you want to be absolutely sure, re-test RAM stick #1 in another known good slot.

*If RAM stick #2 has errors, this indicates another possible bad RAM stick, a possible motherboard slot failure or inadequate settings.

3. Test the next stick of RAM (stick #2) in the next motherboard slot.

*If this RAM stick has errors repeat step #2 using a known good stick if possible, or another stick.

*If this RAM stick has no errors and both sticks failed in slot#1, test RAM stick #1 in this slot.

4. If you find a stick that passes the test, test it in all the other motherboard slots.

If Part 2 testing shows errors, and all tests in Part 3 show errors, you will need to test the RAM sticks in another computer and/or test other RAM in your computer to identify the problem.

In this way, you can identify whether it is a bad stick of RAM, a bad motherboard, or incompatibility between the sticks.

   Information

Errors are sometimes found after 8 passes.

   Tip

Memtest should be done overnight.