Google has barred its employees from using Microsoft's Windows operating system on company premises.
An article in The Financial Times claims a Google employee had revealed that the company had begun to get rid of Windows in January 2010, after its operation in China was hacked, leading to the company pulling out of the country.
Windows, the most widely used operating system in the world, is regarded as more vulnerable than many other operating systems to attacks from hackers and viruses.
Google employees believe that the phasing out of Microsoft Windows from the company's premises is a part of a larger plan to deploy the upcoming Chrome OS on company systems.
If an employee wishes to use Windows, the FT report claims, the request must have a strong and justified reason for doing so, and would have to be approved by Google's CIO.