virus help + reboot questions, help? Options

[xmkaex]

okay that thing keeps on popping up. but the thing is i just installed Spyeware Killer Pro to scan and delete junk. but that stupid thing keep popping up.

i was thinking about rebooting my computer. i have the windows xp reboot cd. yeah, imma gonna burn all my files in to cds. but the problem is that after i finish rebooting my computer[i've done it before] it completely turns off my sound. its not the volume control thingy is something else T_T. the last time i reboot my computer my dad put the sound back on for me. now he says he "doesn't know how to do it" ...i think he's lazy.