Originally posted by: Nothinman
Debian =)
Hehe
Assuming you want a Windows solution, start by using a
Limited-class account rather than a Computer Administrator-class account, at least for IM'ing, browsing and email. If your Limited-class account gets subverted, the malware will be on a short leash as to what it can actually accomplish.
Back that up with Kaspersky Labs' Personal Security Suite maybe, Kaspersky releases virus updates hourly and spam updates as often as every three hours. Their virus detection is known to be among the best too. In the antivirus component of the suite, go to Threats & Exclusions and make sure to enable the Extended Databases.
Supplement Kaspersky's firewall with a
router and lock down all the ports on the router that you don't have a known use for.
Other than that, keep Windows and Office and your other software patched, and don't be sto0pid and install warez/etc or play with P2P. Use your Limited account for browsing, IM'ing and email.
More knowledge in the
Consolidated Security Thread
edit: if the system's already infected, then start with a squeaky-clean installation of Windows, following
safe practices 