China has said a ban on Microsoft Windows 8, triggering speculation that the government is shunning foreign computer systems over data security concerns. While announcing the ban, the government’s procurement authority, which is in charge of supplies and equipment for the government, also launched a tender for government computers.

Tuesday’s announcement said desktop, laptop and tablet personal computers bought for government use must use a different operating system. The Central Government Procurement Center issued the ban on installing Windows 8 on government computers as part of a notice on the use of energy-saving products, posted on its website last week.

Reuters reports that the official Xinhua news agency said the ban was to ensure computer security after Microsoft ended support for its Windows XP, which was widely used in China.

The news will be unwelcome for Microsoft, which has repeatedly failed to gain a strong foothold in the country. Former CEO Steve Ballmer reportedly once told employees in 2011 that, due to piracy in the country, Microsoft makes more money in Holland than in China.

Xinhua reports that China will instead turn its attention to developing its own OS based on Linux.