Program Opened in Non-Existing Monitor? Use This Quick Method to Bring It Back!

I recently came across a funny bug. I couldn't open my NVIDIA GeForce Experience (the icon was there in the taskbar, but nothing displayed when the icon clicked) but when hovered on the taskbar I could see the NVIDIA GeForce Experience display. Quick googling gave me an insight that the NVIDIA GeForce Experience is already opened but opened in another non-existing monitor. It could happen if you plug another monitor, open the software there, then unplug the monitor without drag it back to your original monitor. So what's the fix? It's super easy! click on your software, then use windows button + right arrow to bring your software back to your original monitor. Your problem solved!

Hope it helps~