My computer is making me sad

Ok here's the skinny..

About a few days ago I started getting "Microft

Then I started noticing that a lot of the sites I've been going to had this image..

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I'm not sure if that is itself in any correlation of the problem..

Then my sidebar just wouldn't load..

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microsoft windows keeps telling me to download something, which so far, no matter how much i denied keeps showing up.

I go to pornhub and I get this but only when I'm on IE (not 8, it hinders pro tools)

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I don't know if this is a big deal but I do 99.9% of my browsing on Google Chrome.

my computer also restarts and displays a quick flash of a blue screen with code, this happens whenever it wishes.

Please, please. I love this machine, and would do anything to make it run the way it used to.

I noticed you guys like to use HijackThis. Well, here's another problem, I was on yahoo answers and checked out the software, but it won't run.

Again, please, if this is anything I can do to fix it let me know, the help is very much appreciated.

Thank you for your patience.

Please download the current version of HijackThis from HERE

• Double click and run the installer.
  
• It will install to C:\Program Files\Trend Micro\HijackThis\hijackthis.exe
  
• After installing, you should get the user agreement, press accept and Hijack This will run.
  
• Select Do a system scan and save a log file. This will open a notepad file of everything Hijack This found, copy and paste it back here.
  

Thanks for the help, I friend got a hold of my computer and fixed this up good as new. But again, Thank you.