El Greco asked in Q&A:


Last few days, for a first time during last 2 years, I have encountered this severe problem. I have searched online and tried several possible actions, like uninstalling and reinstalling apps, etc. All incidents have happened during navigating with browsers (i.e., firefox, opera), either watching or uploading videos on YouTube, or recording online streaming radio. It is not a virus (if avast antivirus is reliable…).
1.Computer: Computer Type=PC ACPI, O.S.=Microsoft Windows XP Home Edition SP3, Internet Explorer=8.0.6001.18702, DirectX=4.09.00.0904 (DirectX 9.0c)
2.Motherboard: CPU Type=DualCore Intel Core 2 Duo E8400, 3000 MHz (9 x 333), M/board Name=Asus P5K (3 PCI, 2 PCI-E x1, 2 PCI-E x16, 4 DDR2 DIMM, Audio, Gigabit LAN, IEEE-1394), M/board Chipset=Intel Bearlake P35, System Memory=2048 MB (DDR2-800 DDR2 SDRAM), DIMM1: Kingston KTC1G-UDIMM 1 GB DDR2-800 DDR2 SDRAM (5-5-5-18 @ 400 MHz) (4-4-4-12 @ 266 MHz) (3-3-3-9 @ 200 MHz), DIMM3: Kingston KTC1G-UDIMM 1 GB DDR2-800 DDR2 SDRAM (5-5-5-18 @ 400 MHz) (4-4-4-12 @ 266 MHz) (3-3-3-9 @ 200 MHz), BIOS Type=AMI (03/05/08), Communication Port=COM1
3.Video Adapter=NVIDIA GeForce 9600 GT (512 MB), 3D Accelerator=nVIDIA GeForce 9600 GT, Monitor=LG L222W (Analog) [22" LCD] (18012139)
4.Audio Adapter=Realtek ALC883 @ Intel 82801IB ICH9 – High Definition Audio Controller
5.Storage: IDE Controller=Intel(R) ICH9 Family 2 port Serial ATA Storage Controller 1 – 2921, IDE Controller=Intel(R) ICH9 Family 2 port Serial ATA Storage Controller 2 – 2926, Storage Controller=JMicron JMB36X RAID Controller, Storage Controller=MagicISO SCSI Host Controller, Storage Controller=Roxio SoftScsi Host Adapter (X86), Floppy Drive, Disk Drive=Hitachi HDT725050VLA360 (500 GB, 7200 RPM, SATA-II), plus 4 WD External USB Devices, Optical Drives 5= a.ASUS DVD-E818AT (18x/48x DVD-ROM), b.MagicISO Virtual DVD-ROM0000, c.MagicISO Virtual DVD-ROM0001, d.PIONEER DVD-RW DVR-215D (DVD+R9:10x, DVD-R9:10x, DVD+RW:20x/8x, DVD-RW:20x/6x, DVD-ROM:16x, CD:40x/32x/40x DVD+RW/DVD-RW), e.ROXIO DVD-ROM EMULATOR SCSI CdRom Device (Virtual CD-ROM), SMART Hard Disks Status=OK
6.Input: Keyboard=Standard 101/102-Key or Microsoft Natural PS/2 Keyboard, Keyboard=Wireless Keybord HID, Mouse=Wireless Mouse HID
7.Network Adapter=Attansic L1 Gigabit Ethernet 10/100/1000Base-T Controller (192.168.2.213)
debuglog.txt, after last BSoD Crash:
Opened log file ‘c:debuglog.txt’

Microsoft (R) Windows Debugger Version 6.11.0001.404 X86
Copyright (c) Microsoft Corporation. All rights reserved.

Loading Dump File [C:\WINDOWS\Minidump\Mini050709-01.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: C:\WINDOWS;C:\WINDOWS\system32;C:\WINDOWS\system32\drivers
Windows XP Kernel Version 2600 (Service Pack 3) MP (2 procs) Free x86 compatible
Product: WinNt, suite: TerminalServer SingleUserTS Personal
Built by: 2600.xpsp_sp3_gdr.090206-1234
Machine Name:
Kernel base = 0×804d7000 PsLoadedModuleList = 0×8055d720
Debug session time: Thu May 7 14:46:28.578 2009 (GMT+3)
System Uptime: 0 days 0:58:51.296
Loading Kernel Symbols
………………………………………………………
……………………………………………………….
………
Loading User Symbols
Loading unloaded module list
……………
*** ERROR: Module load completed but symbols could not be loaded for mcdbus.sys
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* *
* Bugcheck Analysis *
* *
*******************************************************************************

Use !analyze -v to get detailed debugging information.

BugCheck 1000007E, {c0000005, b6b4a7f2, b85075b4, b85072b0}

*** ERROR: Module load completed but symbols could not be loaded for PxHelp20.sys
*** ERROR: Module load completed but symbols could not be loaded for GEARAspiWDM.sys
*** ERROR: Module load completed but symbols could not be loaded for ezplay.sys
Probably caused by : mcdbus.sys ( mcdbus+157f2 )

Followup: MachineOwner
———

1: kd> !analyze -v;r;kv;lmtn;.logclose;q
*******************************************************************************
* *
* Bugcheck Analysis *
* *
*******************************************************************************

SYSTEM_THREAD_EXCEPTION_NOT_HANDLED_M (1000007e)
This is a very common bugcheck. Usually the exception address pinpoints
the driver/function that caused the problem. Always no