I tried to help my dad get his computer working after his keyboard started having the control key act like it was stuck after a few key strokes. Eliminated the hardware as the issue and tried all manner of options including uninstalling and reinstalling drivers, and going back to a January restore point. Decided to opt for the Fresh Start option in Windows 10 Home and now it boots up with zero keyboard or mouse functionality.
I tried to use Dell's service tag and remote support scanning capability, but even with the latest version of their support too installed, nothing happened. I also confirmed he was on the latest available version of the bios.
I believe this is an older computer that originally had Windows 7 installed and has an AMD processor. Just looking for some advice on the best next steps that might not result in total data loss, as he probably has some stuff on that computer he wants to keep.