De-install Explorer and load a good browser like Firefox or Opera.
Outlook Express 6 seems jazzed as well.
Why go half way? Get partition magic, shrink the active partition, install MEPIS LINUX on the new empty space, and never again have to worry about (not an exhaustive list):
1) viruses
2) adware
3) worms
4) malware
5) malicious activeX scripts,
6) what I affectionately term as "winrot"... that collection of broken links, corrupted dlls and general crap that make reinstalling windows a repetitive affair every six months.
Try it, or Mandriva, or Ubuntu, or Red Hat Fedora. You will never go back.