Why don't you check out Major Geeks portal
MajorGeeks.com - Download Freeware and Shareware Computer Utilities.
I've used SpyBot and AdAware to get rid of spyware and adware that gets embeded deep into the registry of my computer. AVG antivirus (Free) is there too and with those (which are all free) you can keep your computer clean and fast running. That spyware and tracking stuff that gets into your computer can really slow you down.
What I'd suggest is that when you are prompted to quarantine or delete those cookies....delete them. They'll get back in your computer in time anyhow.....just delete them. (don't store them in your computer in quarantine)
Just keep those programs updated before you use them. (if you're on dial up....just set it up as all manual and nothing auto update....so you can update when you aren't doing anything or when going to bed etc so it will be updated when you get back)
But you can learn a lot at Major Geeks about what's new and gets great reviews from users.
Good Luck
