The latest version of Microsoft's Web browser is now available to PC users running on the Windows 7 operating system. The redesigned browser is currently available as a "preview" and it is not compatible with XP, Vista and any other older Windows version.

Desktops, laptops and tablet computers running on Windows 8 are sold with Internet Explorer 10 already installed.

Internet Explorer 10 is supposed to process Web pages more quickly and smoothly than its predecessors, as it has been designed for Windows 8 tablet computers and other devices, including a new breed of PCs that have touch-screen displays.

Microsoft also hopes Internet Explorer 10 can reverse recent trends in the Web browser market. Although according t o estimates Internet Explorer remains the most widely used, measures show it has been losing market share to Chrome, Mozilla's Firefox and Apple's Safari.