Microsoft (R) Windows Debugger Version 6.12.0002.633 AMD64 Copyright (c) Microsoft Corporation. All rights reserved. Loading Dump File [C:\Windows\Minidump\072810-23743-01.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 (8 procs) Free x64 Product: WinNt, suite: TerminalServer SingleUserTS Built by: 7600.16539.amd64fre.win7_gdr.100226-1909 Machine Name: Kernel base = 0xfffff800`02c1c000 PsLoadedModuleList = 0xfffff800`02e59e50 Debug session time: Wed Jul 28 20:49:42.712 2010 (UTC + 2:00) System Uptime: 0 days 3:25:06.836 Loading Kernel Symbols ............................................................... ................................................................ ..................... Loading User Symbols Loading unloaded module list ..... ******************************************************************************* * * * Bugcheck Analysis * * * ******************************************************************************* Use !analyze -v to get detailed debugging information. BugCheck C4, {91, 2, fffff80002e14c40, 0} Unable to load image \SystemRoot\system32\DRIVERS\vsdatant.sys, Win32 error 0n2 *** WARNING: Unable to verify timestamp for vsdatant.sys *** ERROR: Module load completed but symbols could not be loaded for vsdatant.sys Probably caused by : vsdatant.sys ( vsdatant+11264 ) Followup: MachineOwner ---------