Microsoft releases #Windows 10 build 10586.420 (June update)

Microsoft released a new cumulative build 10586.420 for Windows 10 version 1511 and a separate build 10240.16942 for Windows 10 initial version. If you are using the initial version or the 1511 version of Windows 10, you will get a update notification on your device.

This build is available for both PC and Mobile devices. Read more to know about the changes in both PC and Mobile build.

Microsoft released the Windows 10 Production build 10586.420 for the users running Windows 10 version 1511 and another build 10240.16942 for the users running Windows 10 initial version as part of the Patch Tuesday. If you are using any of the said two production build, you will get the update notification. If you didn’t get the notification yet, check for Windows update now.

What’s new in 10586.420 PC build?

As part of the release notes, this update includes quality improvements and security fixes. No new operating system features are being introduced in this update. The key changes that include in this build are:

• Improved reliability of Internet Explorer 11, Microsoft Edge, Cortana, audio playback, audio playback in Groove Music app, Maps app, Miracast, and Windows Explorer.

• Fixed issue with balloon tip notifications always appearing in the upper left side of the screen.

• Fixed issue that caused VPN to not work properly when switching between different network interfaces (for example, switching between Wi-Fi and cellular).

• Improved Narrator’s ability to read bulleted lists, hyperlinks, and image information.

• Fixed issue in location that caused navigation apps to lag behind user’s actual location.

• Improved performance of loading webpages in Internet Explorer 11 when roaming user profiles are used.

• Fixed issue that caused phones to stop ringing from an incoming call, if interrupted by an SMS.

• Fixed issue that caused some phones to be unable to re-add a primary Microsoft account without resetting after upgrading from Windows Phone 8.1.

• Fixed additional issues with Microsoft Edge, Internet Explorer 11, Bluetooth, Cortana, Wi-Fi, Windows Camera app, revised daylight saving time, USB, TPM, Graphics, Group Policy, downloading music or movies purchased through the Windows Store, Network Diagnostics and Windows Explorer.

• Fixed security issues with Internet Explorer 11, Microsoft Edge, Server Message Block (SMB) Server, Microsoft Graphics Component, Group Policy, DNS Server, Windows Diagnostic Hub, Kernel mode drivers, Microsoft Windows PDF, Windows Structured Query, Adobe Flash Player, JScript and VBScript, and Web Proxy Autodiscovery Protocol (WPAD).

What’s new in 10586.420 Mobile build?

As part of the release notes, this update includes quality improvements. Key improvements in this release includes the following:

• Reliability, performance and stability improvements.
• Improvements to Cortana, including a fix for a problem that sometimes resulted in a crash when performing a search, and corrections to inaccurate times after Daylight Savings Time (DST) on meeting cards and reminders.
• Fix for a problem that could result in unexpected battery drain while syncing mail using IMAP. 
• Improvements to the Maps app, including better stability, improved accuracy, and reduced latency with driving directions.  
• Improved reliability of syncing text messages from the phone to the cloud. 
• Reduced amount of time it takes some phones to completely power off after “Goodbye” disappears. 
• Fix for a problem that caused some phones unable to re-add a primary Microsoft account without resetting after upgrading from Windows Phone 8.1. 
• Fix for a problem that caused some phones unable to install keyboard and languages without resetting after upgrading from Windows Phone 8.1. 
• Reduced the number of days a phone can go without restarting to receive an update from 14 days to 7 days.
• Fix for a problem that caused the phone to stop ringing from an incoming call, if interrupted by an SMS. 
• Fix for a problem that caused Project My Screen to stop working on some phones.

What’s new in 10240.16942 PC build?

As part of the Microsoft release notes, this update includes quality improvements and security fixes. No new operating system features are being introduced in this update. The key changes include in this build for the Windows 10 initial version are:

• Improved reliability of Internet Explorer 11, Microsoft Edge, and Windows Explorer.

• Improved performance of loading webpages in Internet Explorer 11 when roaming user profiles are used.

• Fixed issue with balloon tip notifications always appearing in the upper left side of the screen.

• Fixed issue where Shell Launcher stops working when signing in with an administrator account.

• Improved support of special character input for some keyboard languages on the sign in screen.

• Fixed issue that caused some devices with many processors to hang while rebooting or resuming from sleep.

• Fixed additional issues in Microsoft Edge, Internet Explorer 11, Windows Explorer, Peripheral Component Interconnect (PCI), revised daylight saving time, and Microsoft Graphics component.

• Fixed additional security issues with Internet Explorer 11, Microsoft Edge, Server Message Block (SMB) Server, Microsoft Graphics Component, Group Policy, Windows Diagnostic Hub, Kernel mode drivers, Microsoft Windows PDF, Windows Structured Query, Adobe Flash Player, and Web Proxy Autodiscovery Protocol (WPAD).