Try old drivers
, young drivers, middle-aged drivers, any and all drivers. Try to install them in normal mode, in compatibility mode, and in any other way possible.
Pound Google for more drivers and fixes.
You MAY I say MAY have success. After 10 minutes, 10 hours, or 10 days of fiddling.
If you get it to work, you are done and successful.
If you don't get it to work, you have to decide whether to continue to pound Google and exert more hours is worth your time when you cannot know if you will ever succeed. Maybe the pot of gold is waiting for you at the end of the rainbow.
And maybe not.
At some point, you may decide to give up and try another sound card.
If so, you can refer to the list in my first post or do your own research as to other sound cards that are known to work.
Sound recording on Windows 7 is just problematic. Period. As you are finding out.
Why is it problematic?? I don't think it is an accident. That's my opinion. I think it is deliberately difficult and I leave it to you to ponder why that might be.
It was very easy on XP and is now difficult. Why might that be? Hmmmmm......................