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

After the disappointment - perceived or otherwise - of Windows Vista, many are pinning their hopes on a revival with Windows 7. And from our first impressions of the pre-beta code, that's exactly what they can expect.

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

With Windows 7 arriving soon, is now the time to upgrade to 64-bit? Here's the first part of our guide to everything you need to know

A very likeable all-in-one – albeit limited in its usefulness beyond basic functions. Read our review of Shuttle's new all-in-one X50

How important is RAM size to the way we use 64-bit Windows? And are there other ways to get around the problem? We offer a couple of tips to get you through your 64-bit RAM blues.

A big improvement from Microsoft, but there’s still some way to go. OneCare can now call itself a serious security contender.

Will splashing out on expensive RAM make a real difference to PC performance? And if so, how much should you buy? We supply the benchmarks and lay the details bare

Our full guide to saving cash-saving secrets is here, from how to get discounts on PCs, to SIM only phone contracts, the best DSLR cameras deals, and discount licensing from Adobe, Microsoft and others.