Microsoft's Windows 8 marketing campaign has officially begun. The first ad debuted today, featuring a countdown that stops at eight with the tagline "Windows reimagined." Microsoft is reportedly spending a huge amount of cash on its marketing blitz for Windows 8, with the company focusing on huge billboards for its Surface tablet in US cities.

Advertising agency Crispin Porter + Bogusky is being the first set of Windows 8 ads that will air on national TV ahead of October 26th. Microsoft is holding a special media launch for Surface and Windows 8 on October 25th, with a number of special holiday pop-up stores opening at midnight on October 26th to sell Windows 8 PCs and tablets. This first ad is just one of many, we expect that Microsoft will make it near impossible to avoid Windows 8 this holiday season.