How to fix Microsoft Windows code 19 error
1. Go to My Computer on your Desktop or in your Start Up menu, and select Properties. In Properties, select the Hardware tab and then go to Device Manager.
2. Select the device that has been sending out the Code 19 error. Right click the device and hit Properties. In Properties, go to the General tab, and then Troubleshoot. Select the Troubleshooting Wizard and run it. Select the resolution steps it suggests. If this fixes your problems, you're done. If not, continue reading.

3. Resort to uninstalling and reinstalling the drivers of the problem device. First, uninstall the old drivers by going into the device's Property box and hit the Drivers tab. Click Uninstall, and follow the directions until it has finished. Restart your computer when the task is complete.
4. Go to Device Manager after the computer has started and hit the Action button. Click Scan to look for any hardware changes, and follow the instructions.
5. Reload the device's drivers. If you don't have the driver disks on hand, go to the product's website and download the proper drivers to your computer. Followe the directions it prompts you to do for proper installation. Restart your computer, and enjoy being Code 19 error free.