Windows 10 issue. I'm using a Wacom Intuos Lg tablet with the latest drivers and the newest version of Photoshop CC 2015. After installing Windows 10, when I am using my Wacom tablet, whenever I push Ctrl, Alt or Shift on the keyboard, a tiny distracting popup box shows on the screen “Alt” “Alt+Shift” etc. In Wacom Tablet Properties>Mapping, when I disable “Use Windows Ink”, the popups disappear but the pen sensitivity in Photoshop CC 2015 also stops functioning. The sensitivity still works in other programs like Toon Boom Harmony though. Note: when ’ Use Windows Ink’ is enabled and I am using my USB mouse instead of my Intuos pen, pressing Ctrl, Alt or Shift does not bring up the little popups. Check out the thread of other people having this same problem on the Microsoft site.