According to Forbes, that figure could be somewhere between $1.5 and $1.8 billion, easily the most money ever spent on marketing an operating system.
Microsoft spend around $600 million on Windows Phone 7 in 2010, and $200 million advertising Windows 95.
The major campaign will launch alongside pre-orders of Windows 8 PCs and tablets, including Microsoft's own Surface.
Outside of traditional TV ads, there have also been subway and wall billboards.
Windows 8 will launch for tablets and PCs on October 26th.
Written by: Andre Yoskowitz @ 13 Oct 2012 0:09