Still not sure whether it's worth upgrading to Vista? We put XP and Vista through the ultimate face-off.

We’ve examined the data from more than 8000 readers to reveal exactly what sort of reliability, customer service and satisfaction you can expect in 2007.

Climb the steps all the way to Windows guru status with our invaluable selection of tips and shortcuts for XP and Vista.

A few weeks ago we asked for your eBay stories, and we’ve received a lot of responses about bad sellers, demanding buyers and more.

Last week, in honour of the Windows 7 launch, we covered Microsoft's biggest successes in the computing field. This week, in the interest of balance, we're looking to the company's dark side..

The Internet is booming again, but this time it’s very different. PC Authority brings you up to speed with the global Web 2.0 phenomenon.

We've searched every corner of the web for the most useful (and useless) sites you've never seen. Download free movies and music, find the cheapest shopping sites, get a degree, make money, walk on Mars and much more.

Online services are growing smarter by the day – but can they replace desktop applications? We spend a week working online to find out.

Want to break free from a Microsoft world? Leigh Dyer looks at the alternatives.

We've all had great ideas in idle moments that are either forgotten or impractical, but these are people who identified technological advances and made them happen..

This week we examine a few of those true 'killer apps,' and what they have meant to computing

High-capacity desktop drives have never been so affordable. Darien Graham-Smith puts 23 to the test to find the best

Stack your system full of software without paying a penny, with our guide to essential downloads

How did a vibrant palace of bargains and trust turn into a standoff between buyers and sellers? Part one of our major feature.

Do you have a business or are in charge of a business’ tech security? Get some tips from PC Authority’s experts.

From the Commodore 64 to Microsoft vs Apple, we take a look at the top 10 fights in technology history.

Every day it gets hard and harder to keep up. Here is a list of 10 handy tools for increasing workplace efficiency.

Some of the people on this list are successful billionaires, Some Nobel prize winners or high-tech nomads. However, some individuals are weird even by geek standards.

Every industry has its share of villains, and the computing world is no different.

From budget laptops to ultra-tiny netbooks, ultraportables and high performance, we explain the tricks to finding out the ultimate laptop at the right price.