My new Vista --5 months old--always 'does not respond' when I open internet?

Once I open internet after closing 1st one it usally responds Also installed ADAWARE OR ADWARE from LAVASOFT freeware. Everytime I turn my puter on or reboot, the unintall or repair window opens, If I repair, must update, etc, like a new install or delte--it's gone or just close box--can't run it---what's up???? I Hate VISTA