A video claims to show Microsoft’s personal digital assistant Cortana in action on a Windows Phone. By Samuel Gibbs
'Ransomware' attached to email purporting to come from Royal Mail will permanently encrypt all files on your PC
New data shows Microsoft’s mobile software has achieved constant share over a six-month period in Europe, while sales of Apple’s iPhone 5C have grown - but BlackBerry dwindles even further. By Charles Arthur
Founder Rob Glaser has returned to RealPlayer and relaunched the veteran video company as a free hosting service. By Samuel Gibbs
Microsoft announces 200m licences for new version of OS, well behind Windows 7 - which had sold 300m by the same time - and putting it on a similar strike rate to unloved Vista. By Charles Arthur
Windows XP is coming to the end of its life and Dave wants to know how to replace it with Windows 7… though there may be better options
Just when you find the perfect gadget, along comes a software update to spoil everything, writes Charles Arthur
Do you have to use Linux with the Raspberry Pi or will Windows work with the system? How can you stop your browsing history coming up on someone else's computer? And why is my laptop so very slow?
Falling sales of Vaio line thought to have pushed division into loss, and sale to investment fund may be more attractive as PC market shrinks. By Charles Arthur and agencies
The American PC giant is aiming for consumers familiar with the operating system from 2009 as newer Windows 8 sees slow acceptance. By Charles Arthur
Windows XP will no longer be supported from April. Andy Roberts' family is still using two decade-old Windows XP machines and he wants to know what to do with them
Charles Arthur: Analysis of the revenues and profits for the 'big five' PC manufacturers - HP, Lenovo, Dell, Asus and Acer - which make more than 60% of the Windows PC - shows a multi-year squeeze on prices and profits. What next?
Ask Jack: Richard plans to replace his 2006-vintage desktop, and wants to know how to move his software and data
Korean company said to be readying renewed focus on hybrid PCs, smartphones and tablets. By Charles Arthur
Sam is looking for a new laptop to run Linux, and wonders if it's worth buying one without an operating system pre-installed