You can switch back to your original desktop at any time by following the steps below.
- Click the Task View button in your taskbar. (It looks like a square over a rectangle.)
- Click Desktop 2 or any other virtual desktop you've created.
There's also a Ctrl + Windows key + Left and right arrow keyboard shortcut that you can use to switch between virtual desktops.
Or on your touchpad, you can perform a four-finger swipe left or right to switch between virtual desktops.