So recently I've caught wind of people having trouble with their tablet pens dragging the canvas in photoshop instead of painting or whatever tool they have.
IF you're having this problem, there is a fix!
-Run Command Prompt as Administrator
-Input "reg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Pen /v LegacyPenInteractionModel /t REG_DWORD /d 1 /f" (without the quotation marks)
-Hit Enter
This SHOULD fix the issue you're running into. This input will tell windows to disable usage of Windows Ink. If you'd like to re-enable windows ink; the same input will do the trick if you change the 1 to a 0