Run dslrbooth Full Screen and Disable Windows Button and Key

If you're running dslrBooth in full screen, you can add a PIN under Settings, General, Security to stop guests from exiting the application.

If your tablet has a windows button or key, you'll need to disable those as well in windows. Here are some resources to help in that regard:

• Disable the keyboard Windows Key
• Disable the Windows button on Surface Pro 3
• How to disable Windows key or WinKey in Windows 10/8/7