Streaming Video freezes computer after downloading SP1

Might be useful to see the system error logs, could you go ahead and follow the instructions here
https://www.sevenforums.com/crashes-d...tructions.html
Just zip and attach the output using the little paperclip icon.

I think you may have waited too long to install sp1.
From what I can tell your copy of windows is quite old, and errors became rampant all around with faulting apps right about the time the service pack was installed.
There are certain recommended steps to take before installing the pack. Unfortunately it's a bit late for that now.

Aside from that I notice you have an atheros made wireless device, have you recently updated the driver for it?
They released a massive number of updates recently and it's something I have seen causing people problems.
It would be under optional updates in the windows update window.
I would suggest installing any drivers located there.

As for the massive faulting apps. We should run a check on the windows core files.
Don't worry it's nothing complicated just follow the steps here.
SFC /SCANNOW Command - System File Checker

Get back to me with the results from those. I should warn you my insomnia is wearing off and it'll probably be many hours before I can respond again.

if SFC got any hits at all that does indicate problems with the core files, hopefully it fixed enough of them for you to get by.
If it didn't fix all you could still suffer problems down the road though.