Thank you for posting on HP Support Community.
Don't worry as I'll be glad to help, I have a few troubleshooting steps we could try to fix the issue:
- Did you make any changes to the settings of your PC prior to the issue?
- When was the last time it worked fine?
- Is it a Mac OS or Windows operating system?
- What are the troubleshooting steps you have tried so far?
Keep me posted for further assistance.