New figures show that Windows Phone now make up one in ten smartphone sales across the five major European markets - the UK, Germany, France, Spain and Italy.
It has actually overtaken Apple's iOS in Italy.
The latest smartphone sales data from Kantar Worldpanel ComTech for the three months to September shows that Android remains the dominant operating system across Europe with a 71.9% market share, up 4.2 percentage points on the same time last year.
Kantar says that Windows Phone, which is driven almost entirely by Nokia sales, continues to make rapid progress in Europe, while it has also shown signs of growth in emerging markets such as Latin America.
The research company said that August is usually a quiet month for Apple as consumers wait for the release of new products. Strong sales of the iPhone 5S and 5C at the end of September did not make up for the lull.
''The full impact of the new iPhones will be seen at Christmas when iOS is expected to bounce bank strongly in Britain, the US and Australia," it added.
Today's figures also show that Android now makes up 81.1% of the Chinese market. Chinese manufacturers make up 44% of smartphone sales in the latest quarter, compared to just 30% the same time last year.