• Yes, the next cumulative update for Win10 version 1809 will fix the mapped drive and default program problems

    Microsoft has announced that the Insider Preview Ring-only update to Win10 1809 — the one that’s still being baked — fixes these problems:

    • Addresses an issue in Microsoft Edge with using the drag-and-drop feature to upload folders from the Windows desktop to a file hosting service website, such as Microsoft OneDrive. In some scenarios, files contained in the folders fail to upload, with possibly no error reported on the web page to the user.
    • Addresses an issue that prevents some users from setting Win32 program defaults for certain app and file type combinations using the Open with… command or Settings > Apps > Default apps.
    • Addresses an issue that may cause mapped drives to fail to reconnect after starting and logging onto a Windows device.

    Most importantly, MS has NOT released the fix through the normal Windows Update channels.

    If you’re curious, take a look at that list of bug fixes and marvel at how bad the original Win10 1809 must’ve been.