Microsoft has announced plans to equip the upcoming Windows 7 operating system with a new Anytime Upgrade option.
The feature will allow users to move from entry-level editions of Windows 7 to premium packages.
The aim is to allow buyers the option of purchasing the Premium, Professional and Ultimate editions of Windows 7 without needing to run a complete reinstall.
Microsoft said that the new policy is designed to allow easy updates for customers who purchase the entry-level versions of Windows 7, and then want to add the additional features of the higher-priced versions of the operating system.
Under the Anytime Upgrade plan, buyers will have the option to upgrade from Windows 7 Starter to Windows 7 Home Premium, Professional and Ultimate. Prices will range from £69.99 to £139.99.
Users of the Home Premium and Professional versions will be offered similar updates for the higher editions.
However, Microsoft said that delays in deploying the upgrade SKUs for the special E version of Windows 7, means that customers in the UK will not be able to purchase the three-system Family Pack bundles of Windows 7 Home Premium.
Some parts of Atacama have not received rainfall for 500 years - but a sudden deluge of water upset the Desert's delicate biological balance
Spitzer Space Telescope could not spot Oumuamua, suggesting that it is actually pretty small
Greenland crater one of the 25 largest impact craters on Earth
This long-sought progenitor star was identified in an image captured by Hubble in 2007