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Windows 10 Build 21343 comes with new icons in File Explorer

Microsoft today updated the Dev channel with a new build. Windows 10 Insider Preview Build 21343 includes a set of new icons in File Explorer. It now shows brand new colorful icons for user folders like Pictures, Documents, etc. Besides that change, there are improvements made to Windows Sandbox and Microsoft Defender Application Guard.

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What's new in Windows 10 Build 21343

New icons in File Explorer

The new icons are part of the major icon redesign that could be seen in recent Windows 10 releases. Most of built-in apps have already received their shiny colorful icons, and now it is time for File Explorer.

Windows 10 Build 21343 New Icons In File Explorer

Most of its icons have a new look now. This includes user folders, drives, and some of the buttons. Some of the icons have different styles to play well with the dark theme.  There is also a new icon for the Recycle bin.

Windows 10 Build 21343 New Icons 2

Microsoft said that more icons will continue to get updated over time.

Improvements to Windows Sandbox and Microsoft Defender Application Guard (MDAG)

Both Windows Sandbox and Microsoft Defender Application Guard take advantage of special container technology built into Windows 10. Previously, the container runtime matched the host. Starting with Build 21343, Microsoft is shipping a new runtime that is designed and optimized for container scenarios. It is lightweight and allows faster launch times for both Windows Sandbox and Microsoft Defender Application Guard.

Additionally, Windows Sandbox now includes the new Chromium based Microsoft Edge browser (as of Build 21313).

This change should not affect the application compatibility inside Windows Sandbox. However, this is a significant change and users may encounter some differences in behavior.

The official announcement also includes the following list of changes and improvements.

Changes and Improvements

  • Microsoft is changing the name of the Windows Administrative Tools folder in Start to Windows Tools. They are working to better organize all the admin and system tools in Windows 10.
  • [News and interests] Update on the rollout: following the last update on languages and markets, this week we’re also introducing the experience to China! Microsoft continues to roll out news and interests to Windows Insiders, so it isn’t available to everyone in the Dev Channel just yet.
  • Microsoft is now rolling out the new IME candidate window design to all Windows Insiders in the Dev Channel using Simplified Chinese IMEs.
  • Microsoft is updating the “Get Help” link in the touch keyboard to now say “Learn more”.
  • Microsoft is updating File Explorer when renaming files to now support using CTRL + Left / Right arrow to move your cursor between words in the file name, as well as CTRL + Delete and CTRL + Backspace to delete words at a time, like other places in Windows.
  • Microsoft has made some updates to the network related surfaces in Windows so that the displayed symbols use the updated system icons that were recently added in the Dev Channel.
  • Based on feedback, if the Shared Experiences page identifies an issue with your account connection, it will now send the notifications directly into the Action Center rather than repeated notification toasts that need to be dismissed.

Finally, there is a list of fixes.

Fixes

  • Fixed an issue where devices with certain NVMe drives were experiencing disk resets or WHEA_UNCORRECTABLE_ERROR bugchecks.
  • Fixed an issue where some devices were receiving DPC_WATCHDOG_ERROR bugchecks.
  • Fixed an issue where some devices with Realtek network adapters running driver version 1.0.0.4 were experiencing intermittent loss of network connectivity.
  • [News and interests] Fixed an issue where on some occasions the news and interests button text was using the wrong high contrast color.
  • [News and interests] Fixed an issue where news and interests may not be available when signing into Windows without internet access but returns when online.
  • [News and interests] Microsoft has made multiple fixes to help improve performance and reliability for explorer.exe.
  • Fixed an issue resulting in explorer.exe crashing with Event ID 1002.
  • Fixed a memory leak when interacting with the Recycle Bin.
  • Fixed a deadlock in recent Dev Channel builds related to the Indexer, which could result in not being able to launch Start menu or other apps on first boot after an upgrade.
  • Fixed an issue where on some high-refresh-rate monitors, games would only run at 60Hz. This issue may have also resulted in tearing in variable-refresh-rate monitor scenarios.
  • Fixed an underlying issue resulting in some apps crashing during install and potentially other activities recently.
  • Fixed an underlying issue resulting in some apps unexpectedly displaying a message saying, “You must restart your computer before the new settings will take effect.” recently.
  • Fixed in issue resulting in blurry text on secondary monitors in recent Dev Channel build when the monitor was set to portrait orientation.
  • Fixed an issue impacting the reliability of WIN + Shift + Left / Right Arrow in recent builds.
  • Fixed an issue where the size information for large capacity drives could be truncated in File Explorer’s properties dialog.
  • Fixed an issue that could result in the header at the top of Settings having truncated text in some languages.
  • Microsoft made a fix to help address an issue where the user profile picture in the Settings header would flicker when resizing the window. Please let us know if you’re still noticing this after upgrading.
  • Fixed an issue where after changing audio end points the volume controls in Sound Settings might stop working.
  • Fixed an issue where the Properties and Data Usage options were missing in Network Status settings page recently.
  • Fixed an issue where if you searched for “Advanced touchpad gesture configuration” and clicked the result, it would just launch Settings, and not that specific Settings page.
  • Fixed an issue resulting in Settings crashing for some Insiders after launching it by double clicking on the Windows Update icon in the taskbar.
  • Fixed an issue that was blocking Azure Data Studio from updating to a newer version on ARM64.
  • Fixed issues that were causing Ngen.exe to fail to precompile .NET Framework binaries on ARM64.
  • Fixed an issue that could result in some of the touch keyboard’s child keys being cut off.
  • Fixed an issue where a flick up on the top row of the touch keyboard wouldn’t insert the corresponding number when using the small touch keyboard layout, unlike the other layouts.
  • Fixed an issue that could result in display issues with the IME candidate windows after switching between light and dark theme.
  • Fixed an issue where after typing a very long string of text the Japanese IME could become disabled.
  • Fixed an issue where it wasn’t possible to use SHIFT + Space in Excel when typing with the Japanese IME.
  • Fixed an issue with the Japanese IME where it wasn’t possible to enter a sentence that began with “を” when typing in Kana input mode.

Known issues

  • [Gaming] There is an issue in this build where certain games may crash, will not sync save data when a game is played on a different device, or will not save when a new game is installed. Microsoft is working on a fix, but if you believe this may impact you, to avoid any potential data corruption, it is recommended you to pause updates until the company release a new build with the fix.
  • [File Explorer] After installing this build, all folders pinned to Quick Access in File Explorer will disappear. Please make sure to take note of what is pinned prior to upgrading, so you can find those folders again.
  • [File Explorer] Some Insiders may experience that the entire folders section of Quick Access is missing. If you encounter this, deleting this string %appdata%\Microsoft\Windows\Recent\AutomaticDestinations\f01b4d95cf55d32a.automaticDestinations-ms will bring back the section, however it will not bring back the items that became unpinned. Microsoft is working on a fix for this and appreciate your patience.
  • Devs are looking into reports of the update process hanging for extended periods of time when attempting to install a new build.
  • Microsoft is working on enabling the new taskbar experience for existing pinned sites. In the meantime, you can unpin the site from the taskbar, remove it from the edge://apps page, and then re-pin the site.
  • [News and interests] Pressing ESC key to dismiss an opened context menu in the flyout dismisses the whole flyout instead.
  • [News and interests] Sometimes the news and interests flyout cannot be dismissed with pen.
  • [ARM64] Insiders who installed the preview version of the Qualcomm Adreno graphics driver on the Surface Pro X may experience reduced brightness of the display. This issue is fixed with an updated version of the preview graphics driver at https://aka.ms/x64previewdriverprox. If you are experiencing this issue, please see the feedback collection for more information.
  • The network flyout on the login screen doesn’t open on this build, which will prevent you from connecting to a new network before logging in. If your account is in a state that requires internet to log in, you can work around the issue by plugging in Ethernet, getting the device in range of a previously configured Wi-Fi network, or logging in with any other available account first.
  • The Handwriting Input Panel will not work for pen input on ARM64 PCs running this build.
  • There is an issue in this build that may result in Search crashing on launch for some Insiders. The fix is on the way.

The Dev Channel, formerly known as the Fast Ring, reflects the latest changes made to the Windows code base. It is a work-in-progress, so the changes you see in Dev Channel releases may not appear in the upcoming feature update. So we can expect to see some features which will never appear in stable Windows 10 versions on Desktop.

If you have configured your device to receive updates from the Dev Channel/Fast Ring ring, open Settings - > Update & recovery and click on the Check for Updates button on the right. This will install the latest available Insider Preview of Windows 10.

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Author: Sergey Tkachenko

Sergey Tkachenko is a software developer who started Winaero back in 2011. On this blog, Sergey is writing about everything connected to Microsoft, Windows and popular software. Follow him on Telegram, Twitter, and YouTube.

2 thoughts on “Windows 10 Build 21343 comes with new icons in File Explorer”

  1. They actually look pretty good and match the style of the rest of the “fluent” icons.
    Can we see that recycle bin icon? Hopefully it has enough detail to avoid the Recycle Bin drama of pre-launch Windows 10 lol.

  2. People been having the DPC watchdog errors since 2014, they’re releasing the fix now, absoulutely disgraceful…

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