I have seen many posts in the Dell community about the above subject but no firm permanent resolution. Like many others, I called Dell Tech Support about low volume from the PC when using Zoom. The agent was very persistent and we must have tried every possible configurable sound setting in Windows 10 Professional, but could not find a fix. When I try to share audio or video with others in a Zoom meeting, it's *particularly* low. The meetings I attend are large. There can be between 100-150 people participating. Does this have anything to do with it?  Thanks in advance.