How do I change the host key in VirtualBox?

You can change the host key combination in VirtualBox through the application's settings. The host key is used to return control from the virtual machine to your host operating system. Here's how:

1. Go to the VirtualBox application settings.
2. Navigate to Input.
3. Find the Host Key Combination setting.
4. Click in the field next to "Host Key Combination". The current key will be cleared, and the application will be waiting for you to input the new host key.
5. Press the key you want to use as the new host key (e.g., Left Control).
6. Click OK to save the new setting.