Hello Shimmers. I understand you no longer have audio after uninstall a driver. To assist you, I require the following information:
1. The computer model number. If you require assistance locating this information, please reference this website: http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&lc=en&docname=c00033108
2. Your operating system. If you require assistance locating this information, please reference this website: http://windows.microsoft.com/en-CA/windows/which-operating-system
Let me know if you have any other questions or concerns.
Mario