VirtualDr
Tutorials from a "web doctor" and discussions on how to keep your
PC in perfect order. Part of the mydesktop family of sites. 

HelpSite
One to make a note of on paper too. This free site has on line computer manuals to bail you out when your computer goes wrong. There are also find tips on getting the best out of your computer and software, so don't just save it for the nasty things in life.

DriverGuide.com
DriverGuide.com is truly one of the most useful free resource sites on the Web today. Download the latest software drivers for almost any PC hardware device such as video and audio cards, CD & DVD players, modems, motherboards, scanners, NICs and lots more! 

Windows Drivers
The average user would be advised to steer well clear of Windows device drivers. But for inverate upgraders and those who need to know about them, there's stacks of info here and downloads, even for defunct equipment and manufacturers. An indispensable resource.

Tom's Hardware Guide 
Tom Pabst reviews all the latest bits and bobs for your PC
and delivers news of the latest developments in the ever-changing world of computers
He somehow manages to juggle this with his job as a doctor.

PC Hell
Excellent site helping you to cope when your hardware
software or internet connection goes wrong
There's a section on viruses, both real and bogus.

Computing Dictionary
More than 8,500 definitions, cross-referenced to each other
and to relevant web addresses. Search online or download.

ZDNet Help & How-to
ZDNet Help & How-to - offers computing advice columns
downloadable software utilities and bug fixes
automatic upgrades for software from numerous vendors, and more.