Microsoft has released Windows 10 Insider Preview Build 19546 to Insiders in the Fast ring, which has added a new Graphing Mode to the Windows Calculator and fixed bugs in Timeline, Outlook search, and more.

If you are a Windows Insider in the Fast ring, you can update to the Insider Preview Build 19546 by going into Settings -> Update & Security -> Windows Update and then checking for new updates.

To see the full release notes and fixes for this Windows 10 insider build, you can read the blog post.

The most notable changes found in this new build released to Windows Insiders in the Fast ring are detailed below.

New Graphing Mode in Windows Calculator

The biggest change in this build is a new Graphing Mode being added to the Windows Calculator.

"Adding support for graphing is one of our top feature requests in Feedback Hub, and we’re excited to bring this feature to our users. Graphing capabilities are also essential for students who are beginning to explore linear algebra. With this feature, we hope to empower students to learn mathematics by improving their conceptual understanding and attitudes towards math."

New Graphing Mode in Windows Calculator

This new mode allows users to:

Plot one or more equations on the graph

Add equations with variables.

Analyze the graph.

For those who are interested in testing the app, Microsoft is asking that you post suggestions and feedback in the Feedback Hub.

The new Indexer Diagnostics app

Microsoft has also released a new tool that helps you diagnose Windows search issues called the Indexer Diagnostics app.

If you are having issues with finding your content in Windows Search, you can use this tool to check if a file is indexed, look for failed queries, and check what content is being indexed.

Indexer Diagnostics app

This app is available to anyone running Windows 10 and can be downloaded here.

General changes, improvements, and fixes for PC

We fixed an issue resulting in Timeline not showing any activities.

We fixed an issue resulting in Outlook search not working for some.

We fixed an issue significantly impacting Task View reliability for some.

We fixed an issue where pressing Spatial Sound -> Off in the sound menu caused Explorer.exe to crash.

Known issues