PC - Infected

Hay !
My PC just got infected by an unconown virus / malware of some sort. I was hoping someone her could help me.
Today I dowloaded a .jpeg file. Everything seemed fine, but when I opened it, the screen went all wierd and the screeen blacked. I didnt know what to do so after a minute or so i decided to pull out the battery. When I restarted the PC I started it in secure mode and ran Norton and Malwarebytes. They could not find anything so I decided to run a full system scan. That scan didnt find anything either.
My computer is working and at first look it seems as if it is perfectly fine, but the internet is all fcked up like when I try to go to google.com it says that it is not secure and I must return. I am using Crome btw. I downloaded Avast! but it can`t find anything either. Tried Kaspersky TDSS killer, and it found some sh!t on the PC but things are pretty much fcked up still. Malwarebytes is being denied to update itself, and many other programs is denied access to the internet. I just want to know WTF is up and how the f*ck i can fix this.
Thanks.

P.S: Im kinda noob so if you could explain with that in mind i would be very grateful !
P.S #2: I have connected a flash drive to the infected computer. Does that mean it is infected too? (How am I supposed to deal with this sh!t??)

Follow the steps here please http://forum.avast.com/index.php?topic=53253.0

And attach the logs in this thread

Well, I have used Malwarebytes, Avast! Comodo, Norton, TDSS Killer and none of them has found anything but some minor things on my computer. I really doubt following those guides I have seen all over the internet would make any difference when I have tried all those above ?

The most important would be the OTL diagnostic log
And aswMBR rootkit diagnostic log

Essexboy cant help you unless you attach the logs

Auto removal tools do not see the whole picture…