It's always possible that something went bad with the generic windows usb driver or that for some reason one device didn't disconnect properly. Have you tried rebooting without the keyboard and ...

To update your PS4, go to Settings > System Software Update and follow the instructions. Check USB device compatibility: Not all devices get along with the PS4, and (like certain external hard drives) ...

USB port not recognizing your device? Learn the common causes and step-by-step fixes to get your connection working again quickly.

How to sync a PS4 controller to a PS4 Syncing a PlayStation 4 DualShock controller to a PS4 is extremely easy, but it does require one piece of hardware: A USB to Micro-B cable.

USB port not recognizing your device? Learn the common causes and step-by-step fixes to get your connection working again quickly.