Ehhh, not so good here with the 0x116 tdr timeout errors. They are amongst the most difficult to repair because there literally are tons of causes.
You do have a very old video driver so this in itself might be the cause, but perhaps not. Please update it:
Link Removed
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Navigate to C:\Windows\System32\drivers and delete this old, problem-causing driver:
PxHelp20 PxHelp20.sys Tue Jun 06 16:08:29 2006
Reboot and run Ccleaner to clean the registry.
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Visit the manufacturer's site of your wireless adapter to download and install the latest update. This driver is too old:
WMP54Gv41x86 WMP54Gv41x86.sys Mon Dec 11 09:38:10 2006
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If you have further issues, install the latest motherboard bios from the manufacturer's website.
Then uninstall Avast! in safe mode using the tool found here:
AV Uninstallers - Windows 7 Forums
Reboot to normal mode and install MSE to replace it.
Good luck and please keep us updated on progress. Post a new crash dump if needed, after doing these things above.