If the WhatsApp app for Windows is stuck in fullscreen, there is an easy fix for that: You have to open the WhatsApp settings-file in an editor and change the fullscreen setting. If this doesn't work, follow this link for our tips to delete all WhatsApp settings and install the app again: https://www.computerhilfen.de/english...
How to show hidden files and folders (like the AppData folder): https://www.computerhilfen.de/english...