25206 for folks in the Dev Channel – https://t.co/Es4E6SX6u3
And the .601 update for folks in the Beta Channel – https://t.co/NIm0bg8E6a
Happy installing! 😁🎉🌮 pic.twitter.com/JMu0ZeWMfF
— Windows Insider Program (@windowsinsider) September 21, 2022
What’s new in Windows 11 build 25206
Changes in the behavior of the SMB authentication limiter
The SMB authentication rate limiter in Insider Preview builds has added an additional protection mechanism to the SMB server service: it implements a delay between each failed NTLM authentication. This means that If an attacker previously sent 300 brute force attempts per second from a client for 5 minutes (90,000 passwords), the same number of attempts would now take at least 50 hours. The goal here is to make a Windows client an unappealing target, either in a workgroup or to your local accounts when domain joined. Although the SMB server runs by default on all versions of Windows, it is not accessible by default unless you intentionally open the firewall or create a client SMB share that opens the firewall.
As of build 25206is enabled by default and set to 2000ms (2 seconds). Any wrong username or password sent to SMB will now cause a 2 second delay by default on all Windows Insiders editions. When it was first released to Windows Insiders, this protection mechanism was turned off by default. This behavior change was not made for Windows Server Insiders, it still defaults to 0.
Changes and improvements from build 25206
- The updated “Open With” dialog is now available to all Windows Insiders on the Dev Channel.
- Windows Insiders can now save power by using Dynamic Refresh Rate (DRR) on external displays. To enable this setting, you must have a 120+Hz monitor with VRR (variable refresh rate) support, as well as a WDDM 3.1 driver installed. To select a dynamic refresh rate, go to Settings > System > Display > Advanced display and make your selection under Refresh rate.
Note: To get the latest GPU drivers available for Windows Insiders, check for Windows updates by going to Settings > Windows Update, and selecting “Check for updates.” To find out which WDDM driver you have, go to Start > dxdiag > Display and look for the driver model under Drivers.
- Search from File Explorer Home will show recent cloud file activity in the Details View.
- They are starting to roll out a change to support the use of clipboard history (WIN + V) in password fields. They’re starting to roll this out, so the experience isn’t available to all Insiders yet.
Build 25206 fixes
- OneDrive settings should no longer unexpectedly ask for permission to configure itself every time the PC restarts.
- Fixed an Explorer.exe crash affecting some users.
- Fixed a settings crash that could occur when searching for and selecting certain Narrator-related settings.
- Fixed a search bug affecting some users in the latest updates.
- The Windows Sandbox window should now resize correctly if it fits to one side of the screen.
- Fixed an issue that could cause a memory leak in Windows error reporting after certain crashes.
- If the focus is on the desktop, now pressing ALT + F4 and Enter should shut down the PC, instead of having to move the keyboard focus first (as was necessary in recent flights).
- The computer icon is now displayed again in the Shut Down Windows dialog.
Known issues in build 25206
- NEW! They investigate a problem in which a message from “wrong date, time and time zone settings” displays incorrectly and prevents the installation from continuing.
- NOVELTY! Using the “Reset this PC” option to reset the PC will break UWP apps after the reset. If you need to reset your device to Builds 25201 or higher, please back up your files manually and use the latest ISO available at aka.ms/WIPISO to complete a clean install.
- They are investigating reports that audio stopped working for some Insiders after updating to the latest build.
- They are investigating reports of a few different apps that have started crashing in the latest builds.
- We’re working on fixing an issue where command bar items like copy, paste, and empty trash might unexpectedly not be enabled when they should be.
- They are investigating some issues where uninstalling certain apps via Settings > Apps > Installed apps doesn’t work properly.
Taskbar optimized for tablets
- Taskbar sometimes flickers when switching from desktop to tablet mode.
- The taskbar takes longer than expected to switch to the touch-optimized version when switching between desktop and tablet posture.
- Using the left or right edge gestures may cause widgets or the notification center (respectively) to overlap or be truncated by the taskbar.
- When using the bottom right edge gesture to view Quick Settings, the taskbar sometimes gets stuck in the expanded state, instead of popping out to the collapsed state.
- When there are no windows running on the desktop, the taskbar can sometimes collapse, when it should be expanded.
- In right-to-left display languages, such as Arabic, the content animates out of view before the widget board resizes when you click the expanded view of the widget board.
- In some cases, the notification banner for some badges will not appear on the widget dashboard.