What's New in Windows 10 Cumulative Update KB4517389


Microsoft has begun testing of the much-awaited Your Phone app feature that allows Windows 10 users to make phone calls via their computer. There are some pre-requirements needed for this feature to work, including a phone that runs on Android Nougat (or higher) among other things.

It's time for another major Windows 10 update - this time, in the form of version 1909.

One known issue with the app now is needing to unpair and pair your phone and PC again. In case you want to reject calls, the desktop app can send custom text or send the call to your voice mail. If that's no obstacle, though, you no longer need third-party tools (or an all-Apple setup) to juggle phone calls while you work.

Microsoft says that this feature will gradually roll out to Insiders on 19H1 builds or newer.

And because this update lands on a Patch Tuesday, there are security patches for Windows 10 and built-in components, including the browsers mentioned above as well as Windows App Platform and Frameworks, Windows Authentication, the Windows Kernel, and the Microsoft Scripting engine.

Microsoft fixed an issue resulting in the Optional Features page in Settings crashing for some Insiders.

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An issue was fixed that caused SearchFilterHost.exe to use a lot of CPU when in battery saver mode.

Not only this, but the new cumulative update is also causing problems with the Start menu (again) whereby it crashes and won't operate - not until Microsoft's patch is removed.

We fixed an issue where, after successfully updating to Build 18995, the Windows Update Settings page might show the same build still needs to install.

We fixed an issue in the Search bar in either Control Panel or File Explorer where the box becomes grey and prevents input.

Fixed an issue where devices configured for dual scan (WSUS and Windows Update) for updates may not have been offered new builds in the Fast ring. This feature arrives with Windows 10 preview build 18999 for Insiders (20H1), which means if you're on the stable version, you'll still have to wait a while before you can try it.