I have an old HP Pavilion a6045x and recently tried to upgrade it. My problem is when I plug a pair of headphones into the rear or front panel 3.5mm audio jack, the audio still goes through to my HDMI LG TV. I have checked the playback devices menu, and unlike my other PC, it does not display the front/rear/headphones (yes, show disabled and disconected devices is checked). Then, I went into device manager and checked the audio drivers, it displays that it is using "High Defintion Audio Device". I've tried uninstalling and restarting, checking for updates, the built in Windows 10 troubleshooting, and I've looked at the HP Specs, and it says my Pavilion uses a Realtek RLC888 Audio Driver, but the only driver of that name I could find was for Dell PC's. I tried newer Realtek drivers, and gone into Device Manager→High Definition Audio Device→Update→Browse my Computer for Software→Let me pick from a avalible list...→(I tried the two avalible HDAD options) Uncheck Show compatible hardware→Realtek→and installed the Realtek High Definition Audio, my PC starts to install, then crashes, giving a the SYSTEM THREAD EXCEPTION NOT HANDLED stop code and saying RTKVHD64.sys failed.
At this point I'm not really sure what to do, any and all help is appreciated!