Microsoft announced Windows “Vienna” formerly codenamed “Blackcomb” some time ago just before Windows Vista Beta 1 was released to developers. “Vienna” is to be the next operating system to be released after Windows Vista ships later in 2006.

They told us in a press release statement that “Vienna” will support 32 bit machines, and was expected to be released between 2010 and 2012. So the simple answer is, Microsoft should be writing 32 bit operating systems till about 2012, which means you will only have to worry about upgrading to a 64 bit machine in 2015 when they release the operating system after Windows “Vienna”.

Confusing, I know - but that really is the simplest I can explain it!