Need Assistance

[lance77]

Recently, my computer has been acting rather strange. But today, my computer folders will not open. I cannot open anything on my computer without it crashing. (folders, anything having to do with my C:\. or anything else involving my folders.

I know its a trojan, and i've been using SB S&D, but it hasn't been working, I really do not want to reformat so any help available would be great.

Thanks