Another week, another Fall Creators Update Insider Preview built for Insiders in the Fast ring to test. Today's build is 16299, includes a few new bug fixes in preparation for official launch on October 17th.


  • We fixed an issue some Insiders were experiencing where after upgrading to recent flights their optical drive wouldn't be listed under This PC.
  • We fixed an issue where Microsoft Edge might crash when scrolling embedded PDFs.
  • We fixed an issue resulting in some Insiders seeing 0x80070005 when trying to upgrade to the last few flights.
  • We fixed an issue where using the Automatic File Download notification to block an app from downloading files wasn't working for UWP apps.
  • We fixed an issue resulting in Windows Defender potentially downloading files selected to be online-only after using the file picker dialog and viewing their thumbnails.

Unfortunately, there's no Mobile build or Skip Ahead build available today. The build is rolling out now in the Fast ring for Insiders on PC.