Software installed in the sandbox stays in it and has no effect on the host. With their closure, included software and files will also be permanently deleted. The basis is hardware-based virtualization for kernel isolation and Microsoft hypervisor.

Microsoft released Preview Build 18305 in the Fast Ring of the Windows 10 Insider program. There is an outlook on the Windows 10 feature update expected next spring, which is previously known as the internal code name 19H1.

Included with the sandbox for Windows is one of the essential new features, but they reserve Windows 10 Pro and Enterprise. This sandbox is designed to allow users to run potentially dangerous software in an isolated desktop environment. Many web browsers also use a similar technology.

In doing so, a closed environment prevents malicious code from infecting the system. Software installed in the Windows sandbox stays in it and has no effect on the host. With the closure of the sandbox, all contained software and files will also be permanently deleted. When launching a sandbox, it’s “as clean as a brand new installation of Windows,” according to Microsoft. The basis is a hardware-based virtualization for kernel isolation based on Microsoft hypervisor.

Simplified Start Menu
A striking innovation is the simplified Start menu. It is provided for new devices, new user accounts and clean reinstallations, while existing installations stick to the usual layout. The streamlined new layout is based on a single column and is designed to turn out app tiles less intrusive. According to Microsoft, it stems from suggestions from users and is part of ongoing efforts to improve the Start experience in the upcoming Windows release.


The Windows sandbox isolates potentially threatening applications (Image: Microsoft).

The new “Tamper Protection” setting from Windows Defender Antivirus provides more manipulation security. The presentation of identified threats and appropriate measures should be more detailed and understandable.

In the future, it will be possible to set up Windows 10 with an account that is connected to a phone number and renders a password expendable. A code sent via SMS allows you to log in and account setup on Windows 10 – then users can opt to log in with Windows Hello Face, Fingerprint or PIN.

The last major Windows test build this year also brings a number of other improvements, fixes, and updates. Testers of Build 18305, however, may yet encounter numerous and perhaps troublesome problems, particularly around the Windows sandbox, Dona Sarkar and Brandon Leblanc warn in a blog entry. Participants in the Windows Insider program who do not want to expose themselves to the unavoidable errors at an early stage of development suggest the switch from the Fast Ring to the Slow Ring.

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