I was browsing videos on my computer when the speakers suddenly started giving off a crackling/popping/white noise type of sound. I then became aware that my screen was also frozen. I could not move the cursor, alt tab, ctrl+alt+del or anything. I also could not turn off my tower by holding down the power button. Finally I flicked the switch on the back of the pc.
After giving it some time I turned my computer back on. Similar circumstances to what happened above, only almost instantly upon launching Firefox. While frozen I noticed that Microsoft SE was not visible in the toolbar.
I restarted my computer again, this time in safe mode. I tried to run MSE but got the "that is not installed" message that I've gotten before when infected. I tried to uninstall/reinstall but I could not uninstall MSE in safe mode. I updated and ran MBAM which found four infected files, all trojans. I removed the offending programs and restarted. My computer did a weird blue screen file check thing while starting up. Upon reaching the screen where you select a user the computer froze with the same speaker noise. I turned the computer off at the back and then restarted it and it froze on the same screen. Finally I tried loading into Safe Mode but the computer froze while loading before it even reached the user selection screen.
Am I boned?