BSOD

Windows 7 X64 with lots of 32 bit apps.

system about 6 months old. Started happening a couple days ago. It happens after about 1/2 hour of operation.

Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7600.2.0.0.256.48
Locale ID: 1033

Additional information about the problem:
BCCode: 100000b8
BCP1: FFFFFA8005211B60
BCP2: FFFFF80002C17C40
BCP3: 0000000000000000
BCP4: 0000000000000000
OS Version: 6_1_7600
Service Pack: 0_0
Product: 256_1

Files that help describe the problem:
C:\Windows\Minidump\112110-24039-01.dmp
C:\Users\jeanne\AppData\Local\Temp\WER-38235-0.sysdata.xml



Could someone tell me where to start? I understand this is probably software, not hardware.

Read the ""how-to" post and here are the requested files: The printer is not a problem. I moved it to my laptop, so I can print.

All dumps blame snapman.sys part of Acronis True Image, Uninstall it

Code:

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

Use !analyze -v to get detailed debugging information.

BugCheck 100000B8, {fffffa8006342060, fffff80002c08c40, 0, 0}

Unable to load image \SystemRoot\system32\DRIVERS\snapman.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for snapman.sys
*** ERROR: Module load completed but symbols could not be loaded for snapman.sys
*** WARNING: Unable to verify timestamp for win32k.sys
*** ERROR: Module load completed but symbols could not be loaded for win32k.sys
Probably caused by : memory_corruption