How to Fix Hal.Dll Error

1. Reboot your system and see if this fixes the problem. You might have just had a fluke that gave you this problem. If rebooting doesn't solve the problem, continue to the next step.
2. Go to your Start menu and click 'Run.' Type 'cmd' and press 'Enter' on your keyboard.
3. Write the following command in your command line: bootcfg /rebuild.
4. Restart your computer.