Malwarebytes Anti-Malware FTW!
I had a trojan on my computer a few weeks ago that changed my proxy settings to the internet and I couldn't access the web, or any thing on my computer and had to start it in safe mode to be able to do anything.
After a while it started opening up IE windows with less than child friendly material on them. Malwarebytes took care of the problem really quick and simple.
What I did was:
1. Start computer up in Safe Mode (press the F8 key when Windows starts to boot)
2. Open IE and go to Internet Options ( Under tools)
3. Change proxy settings (Dont remember which, but I think you have to look in the LAN settings, looking at mine right now, none of the boxes are checked/selected)
4. Download Malwarebytes Anti-Malware (http://download.cnet.com/Malwarebyte...-10896905.html)
5. Run Malwarebytes, quick scan first, then restart computer and run a complete scan. (Quick took me like 5 minutes, complete is over an hour)
If you can get on the web(assuming you can since you posted here, skip step 2 and 3. But do open IE so you can download
I think thats what I did. It was something close to that atleast.
Goodluck getting your computer working right again.