• Reports of Win10 1709 cumulative update KB 4093112 messing up Wacom pen pressure

    UPDATE: Microsoft has just posted an explanation and remediation on Reddit:

    Dear Windows Ink Community,

    In an effort to provide our users with more control over pen behavior in legacy Win32 applications, we provided a mechanism (starting with Windows 10 Spring Creator’s Update Build 17110, see this post) to enable the previous behavior from the Windows 10 Anniversary Update.

    Due to high demand from the community we also brought this mechanism to the Windows 10 Fall Creator’s Update via KB4089848 which accompanied other operating system updates. Unfortunately this update also introduced an unintended regression in pen behavior for a subset of popular Win32 applications (i.e. Adobe Photoshop, Adobe Lightroom, Clip Studio Paint) that results in unexpected panning/scrolling.

    We are actively working on delivering a subsequent Windows Update that will remedy the regression that was introduced, however in the interim we want to provide the community some options to the get the expected functionality in these impacted applications:

    Option 1: Upgrade to the Windows 10 Spring Creator’s Update

    Option 2: Execute the following from an elevated command line, and all legacy Win32 applications will get the pen behavior from the Windows 10 Anniversary Update: “reg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Pen /v LegacyPenInteractionModel /t REG_DWORD /d 1 /f”

    On behalf of the Windows Ink team, we regret any inconvenience that this has caused our users and hope that the above solutions will minimize the impact on pen workflows until we remediate this via Windows Update. We will keep this thread updated with the latest news on its availability.

    Thanks, David WindowsInk@microsoft.com

    Here’s my original post, modified to remove a reference one reader found objectionable:

    Lots of reports on Twitter of the latest Win10 1709 cumulative update screwing up Wacom pens.

    Microsoft MVP and Community Moderator Barb Bowman describes the problem succinctly:

    the pen drags the canvas around instead of the drawing.

    She has a post that may help you fix the problem:


    Barb goes on to say that the problem also appears with the March Win10 1709 cumulative update, KB 4089848.

    The solution is to change the registry setting HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\PenLegacy\PenInteractionModel\ to 1.

    Many thanks to @skaldheim for pointing me to the threads!