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Old Windows 10 Versions Will Expire Today, Stop Working in Two Weeks
Microsoft launched the very first Windows 10 Technical Preview build in early October 2014, and since then, the company has updated it several times, launching not only new versions but also plenty of improvements supposed to provide us with a glimpse into the feature lineup of Windows 10.
In an announcement on the Insider Hub, Microsoft warns that old versions of Windows 10, including build 9841, 9860, and 9879, expire today, so all those who are still running these need to update to a newer version if they want to continue using the technical preview.
Microsoft says that, in two weeks, these builds will stop booting completely, so you still have until April 29 to update your computer to the very latest version of Windows 10.