I've been using Bandicam for almost 2 years now without a problem (that includes my PC dying and a new one being built) and it suddenly stopped working on Wednesday. So I uninstalled it, reinstalled it along with uninstalling my video driver and reinstalling that.
It sort of works in that I can get it to capture the image of the display, but it doesn't detect the game I'm playing. But in the case of games with a launcher, such as World of Warcraft, it detects the launcher just fine, but not the game itself. Running it as administrator doesn't work either.
I'm running Windows 7 with a Nvidia 1070 GTX, the Bandicam build I'm using is 18.104.22.1683.