PCM - Navigation Tree is missing

Issue: When opening PCM, the left-hand navigation tree is missing.

This is due to the Windows Touch Keyboard and Handwriting Panel Service service, which is not compatible with PCM.  This is noted in the PCM System Specification Guide:

To resolve, you must disable this service (you will need admin access on the machine to disable services).

Windows 10 instructions:

1. Type "Services" into the Windows search bar to bring up the Services screen

2. Navigate to the "Touch Keyboard and Handwriting Panel Service"

3. Right-click and select Properties

4. On the General tab, click the dropdown for Startup type and then select Disabled.

5. Click Stop in the Service status area

6. Click Apply and then click OK. 

7. Restart the machine and when it starts back up, go back into Services to make sure the touchscreen service has not reenabled itself. 

Please note sometimes Windows updates can re-enable this service. If this happens, go back in and disable. 

Windows 11 instructions:

In Windows 11, Microsoft embedded the Touch Keyboard and Handwriting Panel Service into the system and it is no longer listed under Services. To disable it, you can use the Registry Editor.

1. Open the Registry Editor:
   • Press `Win + R` on your keyboard to open the Run dialog.
   • Type `regedit` and press `Enter`. If prompted by User Account Control, click `Yes` to allow the app to make changes to your device.
2. Navigate to the Registry Key
   • In the Registry Editor, use the left-hand pane to navigate to the following path:  HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\TabletTip\1.7
   • If the `TabletTip` key or the `1.7` subkey does not exist, please verify your version of Windows
3. Create the DWORD Value
   • Right-click on the `1.7` folder (key) in the left-hand pane.
   • Select New > DWORD (32-bit) Value.
   • Name the new DWORD value "EnableCompatibilityKeyboard" and press Enter.
     • If a DWORD value named EnableCompatibilityKeyboard already exists, skip this step.
4. Set the Value of the New DWORD
   • Validate that the EnableCompatibilityKeyboard DWORD value is set to 0
     • If not, double-click on the EnableCompatibilityKeyboard DWORD value you just created.
     • In the Value data field, enter `0`.
     • Click `OK` to save your changes.
5. Reboot Your Computer
   • To apply the changes, you need to restart your computer. Click on the Start menu, select the Power icon, and choose `Restart`

 After following these steps, the touch screen service should be disabled on your Windows 11 machine.