The error can apply to any hardware device in Device Manager, but most errors occur on optical drives, such as DVD and CD drives, USB devices, and keyboards.

Follow these steps in the order they are listed below to try the simpler solutions first.

Restart your computer if you haven’t already. There’s always a small chance that the Code 19 error you’re seeing was caused by some sort of coincidence or temporary issue. If so, a simple restart might fix the problem.

Did you install a device or make a change in Device Manager right before you noticed the error? If so, it’s entirely possible that the change you made caused the Code 19 error. If possible, undo the change, restart your PC, and then check for the error again.