There is a (new?) application that can be found on Microsoft or the Store. It works perfectly as before. When you start it says "Lenovo Smart Noise Cancellation" and has a similar look as before (but background is black rather than white)
Here is the link to find it on Microsoft web or store. When you get to the Microsoft web choose to load it from the store (that's what I did, it's safer apart from anything else)
https://www.microsoft.com/store/productId/9NPCZP8F4G78
Hope you can make it work again.
Cheers