Microsoft's latest Windows 10 19H1
Build 18305 of Windows 10 19H1, which Microsoft rolls out to Fast Ring testers on December 19, includes support for this sandbox feature. Microsoft has tested this feature privately for months, back when it became known as "InPrivate Desktop", and before that, with the code name "Madrid".
In addition to adding sandbox support, today's test building makes the setup and login process for Windows 10 with a phone number account that cuts the need to create a password. Those with Microsoft accounts with their included phone numbers can use an SMS code to log in and set up an account on Windows 10. When set up, users can choose Windows Hello Face, Fingerprint or PIN to log on.
Building 18305 adds Tamper Protection, a new setting from Windows Defender Antivirus, in the Windows Security app. It also contains a new "Protection History" experience, through which users will continue to see detections of Windows Defender Antivirus, but will update with more detailed and easier understanding of threats and available actions. Controlled folder access blocks are now part of history, and there are some blocks made through organizational configuration of Attack Surface Reduction Rules.
Today's test building also includes a simplified start layout for new devices, new user accounts and clean installations. The new layout is a single column of reduced top level titles. Microsoft officials said that commercial users and education users would get simpler layouts tailored to their own scenarios.
There are a number of known issues with today's building, especially around the Windows Sandbox. Testers should read the current post for a complete list. There are also many other incremental new features, repairs and updates, also listed in today's blog posts.
Today's test building is the latest new Windows 10 19H1 release that Microsoft plans to deliver to Insider testers, officials said.
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