I have a dell OptiPlex 3020 windows 10 64 bit latest updates. I have an issue with the keyboard and mouse. It's not working. I'm not on site just remote (and I can't be on-site user in a different state), so I had the user try to get into the bios first and that's not working either. I upgraded to the latest bios but that has not effect either. Then I updated all the drivers I could fine and still nothing. The machine has no backup or system restore set. I actually just set that up yesterday. The strangest thing is I can remote in via vpn and rdp and I have keyboard and mouse, however the user can't use it on the local machine. I tried to uninstall the keyboard and mouse like 10 times already but it still comes back with yellow ! Any ideas?