Ugh this thread is about the Mbox 3, please don't spam stuff on irrelevant threads.
You can find other threads on DUC from the past talking about the first gen Mbox. Like this one
https://duc.avid.com/showthread.php?t=399021
Unfortunately this interface is so old and far past end-of-life support, and not officially supported on Windows 10. I suspect you would be better off trying to find a new interface if possible, (e.g. a Focusrite 2i2 is widely used low-end interface) and just about anything will sound better.