Steam on Windows XP and Windows Vista will stop working from 2019. This is because the Steam client uses a special version of Google Chrome, which is no longer supported.
This may seem like a bad move, but if you are a gamer, you will more than likely be aware, that the majority of games released in the last 2 or 3 years will not even work on XP or Vista. That’s mostly because modern graphics drivers are available for Windows 7 or later.
If you are still using XP, the reason is probably because your computer is too old to even run Windows 7. In such cases you can’t even play the latest AAA games. But, there are several games which run perfectly fine on Windows XP and Vista. The announcement from Steam ,will really only affect such gamers who rely on their old systems for classics and retro games.
According to a Steam Hardware Survey only 0.22% of gamers still used Windows XP. That is a really negligible number.
Microsoft ended support for Windows XP in April 2014. The fact that Google supported Chrome for XP till 2016, says a lot. And Valve supported Steam (with Chrome) even longer for over 4 years (till the end of 2018) is even more impressive.
Steam on Windows XP and Windows Vista will no longer work from January 1st, 2019. Until then you can use Steam and play games on your account, but the features in the client will be limited, according to the official announcement.
Can I still use Steam on Windows XP and Windows Vista after January 2019?
No, you cannot. You either have to upgrade to a newer Windows version or upgrade the computer and Windows, to continue using Steam.
The more concerning issue is Windows 7, which is staring down the barrel, come January 2020. That’s when Microsoft will end support for updates on Windows 7, and all hell will break loose.