What's been fixed - and what hasn't - in Windows 10 Insider Preview build 14279 for PCs [Update]

Today, Microsoft announced the release of its latest Windows 10 Insider Preview for PCs, build 14279, which includes a new logon experience, new language/region support for Cortana, and new functionality allowing the digital assistant to remember important information for you on the go, without needing to set a detailed reminder.

As ever, though, the new build includes some known issues - but Microsoft has also fixed a few problems from earlier builds.

First up, here's what been fixed:

  • We fixed an issue where Microsoft Edge and Cortana were crashing for users with roaming profiles.
  • We fixed an issue where Cortana would continue to show reminders that have been completed.
  • We fixed an issue where items copied/moved to the desktop would not display until the desktop is manually refreshed by right-clicking on the desktop and choosing “Refresh” or pressing F5.
  • We fixed an issue where downloading certain drivers from Windows Update was causing some PCs to bluescreen.

...and here's a breakdown of the known issues that remain in build 14279 - be sure to read through these carefully before upgrading to the new preview, so that you're prepared if any of these issues pop up on your Windows 10 PC:

  • We’re investigating an issue in which some Surface Pro 3, Surface Pro 4, and Surface Book devices experience a freeze or hang and all input such as keyboard/trackpad and touch do not work. The workaround is to hold down the power button to force the device to hard-reboot.
  • We are continuing to track several issues reported by Insiders where some PCs will freeze or bluescreen when resuming from hibernation. Disabling hibernation is a workaround in some cases until this is fixed.
  • If you have Kaspersky Anti-Virus, Internet Security, or the Kaspersky Total Security Suite installed on your PC there is a known driver bug that prevents these programs from working as expected in builds from the Development Branch. We are partnering with Kaspersky to fix this issue for a future release, but at this time there are no known workarounds. While this issue is present, we recommend using Windows Defender or another third party anti-virus product of your choice to remain protected.
  • Turning on the “always show all icons in the notification area” setting disrupts the layout of the notification area (“systray”). Your notification area will look out of alignment.
  • We are seeing reports of crashes with apps such as QQ crashing due to an OS reliability issue we are currently investigating. This bug is also impacting older apps such as Windows Live Mail and Expression Encoder 4.
  • Connectivity to older Wi-Fi networks using the WEP encryption security method may be broken. WEP is an insecure method for protecting your Wi-Fi connection but a small percentage of Windows users still use it. A workaround would be to configure your wireless routers to use WPA or WPA2 or wait for the next Insider flight when this is fixed.

If you're not prepared to deal with any of these issues, then it's best to hold off on installing the new build - and of course, it may even be worth considering stepping down to the Slow ring, which will provide you with more stable Windows 10 builds, with fewer issues.

If you do go ahead and install build 14279, be sure to let us know how you get on in the comments below.

Update: Microsoft quietly added another known issue after originally publishing its blog post, relating to WEP-based encryption on older Wi-Fi networks. We have now appended this addition to the list above.

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