Crackling sound over recording


I recently changed from macbook to windows and last monday I recorded my first podcast with my laptop. When testing the sound was fine, so I went on and recorded a full episode of around 1 hour. But around the 10 minute mark a crackling sound starts and gets worse until the 40/50 minute mark. After this the sound gets less and in the last 10 minutes it disappears. I have tried a lot to remove this sound, but nothing did the trick. I would love to know if the recording could be saved. I added a snip of the recording where the crackle starts and when it is at its worst. I really hope that there is a solution, or where the problem lies.
Many thanks!

The second audio: