Factory Reset Windows 10 PC without keyboard

My windows 10 PC is acting wonky. I can no longer access the windows start menu and my keyboard will not respond. The computer has been sitting like this for weeks now and I've not come up with any solution better than a reset. I can't use the reset option in the boot menu due to having no keyboard and wouldn't even know how to start without being able to type anything or access start. I also do not have an install CD, but do have a 128GB thumb drive. Also worried about if it's possible to lose windows 10.