I am having several problems with my computer.

First, I am inundated wth popups. I cannot visit certain website. Links on other sites don't work. I can't send an email from hotmail or aol. Any site using Java doesn't work. Sometimes a site will load for a second and then the screen goes white. These problems are crippling my computer

I have installed Adaware and SpyHunter. When it's time to delete the corrupted files, some of them get deleted and some don't. I have tried to delete them manually, but haven't had any luck. I have Windows XP. Does anyone have any suggestions? Thanks