I need some assistance, long story short, one day I started up my computer, ad-watch popped up displaying a program that wanted to start, I assumed it was bad, and blocked it. Then another program showed up, so I blocked this, I did this several times, then just clicked "automatic" it proceeded to block 400 some-odd programs. Now most of the links on my computer are dead and a lot of programs won't start. What should I do?