On Windows 10 tablet PC, you can use press and hold to perform a right-click action, which is because the related touch setting has been enabled. In more detail, this article introduces how to disable or enable press and hold for right-clicking.
Video guide on how to disable or enable press and hold for right-clicking:
Step 1: Open Control Panel.
Step 2: Type touch in the top-right search box, and tap Pen and Touch in the result.
Tip: You can also select Change touch input settings or Change multi-touch gesture settings from the result.
Step 3: Choose Press and hold and click Settings.
Step 4: In the Press and Hold Settings dialog, deselect or select Enable press and hold for right-clicking, and then hit OK.