It seems that Valve decided to force PC users to abandon outdated operating systems in favor of more modern ones. So, according to a recent statement from the company, Steam service will not be available on Windows XP and Windows Vista from January 1, 2019.From the first day of 2019, Steam will not work on the aforementioned operating systems. According to Valve representatives, this is due to the fact that the new features of the service relies on the built-in version of the Google Chrome browser, which, in turn, does not work on older versions of Windows. In addition, future versions of the Steam client will require support for some features and the presence of security updates, which are only available on Windows 7 and newer operating systems from Microsoft. It is noted that some features of the service on Windows XP and Vista will not be available until the end of the year. Thus, it will be possible to use Steam on old operating systems, but here, for example, chat is not possible. It is interesting that the most part of Steam users already use the latest Windows 10. According to recent data the share of Windows XP is only 0.23% and Vista is even less. Specific indicators of the popularity of this OS among Steam users remained unknown, as the operating system was included in the "Other" category, the popularity of which did not exceed 0.12%.