Microsoft would start selling Windows 8 in the market from October 26.

As a result, the company would be holding the launch event on October 25.

Microsoft Surface Tablet PC is also expected to go on sale from October 26 morning.

This is going to be a very crucial launch for the company as they tackle the competition from Apple iPad with Windows RT.

Performance of Windows 8 in the market would also showcase if the common user is ready to adopt Metro as the new user interface of the Windows platform.