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Microsoft issues bug-fixing update for Windows Insider build 18312

Windows Insider program settings
Windows Insider program settings (Image credit: Windows Central)

Microsoft may not have another major build in the hopper for Windows Insiders on the Fast ring today, but it is pushing out an update meant to fix issues for last week's build. Coming as a small update to build 18312, the latest release pushes the build number up to 18312.1007 (KB4487181) and includes three fixes for some lingering issues.

Here's a full look at what's included:

  • We fixed an issue resulting in File Explorer unexpectedly having a lock on USBs when trying to safely eject them.
  • We fixed an issue resulting in frequent bugchecks (GSODs) in the last two flights, citing an error with bindflt.sys.
  • We fixed an issue where a password change can result in the next unlock hanging for AD users.

If you're a Windows Insider enrolled in the Fast ring, you should be able to download this small cumulative update via Windows Update now.

Dan Thorp-Lancaster is the Editor in Chief for Windows Central. He began working with Windows Central as a news writer in 2014 and is obsessed with tech of all sorts. You can follow Dan on Twitter @DthorpL and Instagram @heyitsdtl. Got a hot tip? Send it to

  • Still waiting for slow ring update.
  • Considering the state of the Fast Ring builds this cycle, it will still be a long wait. Dona Sarker commented last week that no Fast Ring builds have met the more stringent standards applied to builds before they can be flighted to Slow Ring. Oh Well!
  • Seeing how they're pushing a fix as an update to an existing build instead of a new build, it may be to allow them to promote that build to Slow ring.
  • Finally we have this update