OK. This may work if you have system protection turned on.
Go to desktop in your User folder. Right click and select Properties. Go to the Previous Versions tab and let it populate (it may take some time). With a bit of luck you will find a version before you deleted which you can restore from.
If that doesn't work. Download Recuva (the link is in my signature) and scan for video files. You may be lucky if they have not been overwritten.